Partner Betrayal FanFiction

white knight

white knight

F/F
G
Updated
11.04.2025
Fandom
Dangan Ronpa: Trigger Happy Havoc Dangan Ronpa Another Episode: Ultra Despair Girls
Characters
Naegi Komaru, Maizono Sayaka, Maizono Sayaka/Naegi Komaru
Tags
Developing Relationship Alternate Universe - Canon Divergence Pre-Relationship Kinda Femslash February Femslash February 2025 Lesbian Naegi Komaru Maizono Sayaka Needs a Hug Suffering Maizono Sayaka Past Maizono Sayaka/Naegi Makoto - Freeform Maizono Sayaka Lives Minor Ikusaba Mukuro/Naegi Makoto
“I know I'm… not the most useful, or skilled… but I want to protect Maizono-chan like she's been doing for me. We both have these megaphones, so… maybe we can protect each other? I… people called me a white knight a lot online, you know… but I truly...
Family is found where the light goes

Family is found where the light goes

F/F
F/M
M/M
G
Updated
11.04.2025
Fandom
Original Work
Characters
Original Characters, Original Female Character(s), Original Male Character(s), Original Female Character(s)/Original Female Character(s), Original Non-Human Character(s), Original Alien Character(s)
Tags
Magic Sibling Rivalry Other Additional Tags to Be Added Past Child Abuse Self-Harm Clones Time Travel Memory Loss Tags May Change Tags Contain Spoilers Adopted Children Crying
stupid leaf girl gets adopted
The nipple piercing

The nipple piercing

F/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Draco Malfoy, Hermione Granger, Hermione Granger/Draco Malfoy, Ginny Weasley, Viktor Krum
Tags
Betrayal Revenge Complicated Relationships Resolved Sexual Tension Sexual Tension Possessive Draco Malfoy One Shot Nipple Piercings Nude Photos Slytherins Being Slytherins Partner Betrayal Hogwarts Eighth Year
"Nice piercing, Granger!"She was desperate:"Malfoy, I sent you by accident, it was for my boyfriend! I have a boyfriend, I would never cheat on him!""What nonsense! Such beautiful photos are art! You didn't cheat on him. They're not cheating. I liked...
Pensieri e Parole (Thoughts and Words)

Pensieri e Parole (Thoughts and Words)

F/M
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, James Potter/Lily Evans Potter, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Severus Snape, Tom Riddle | Voldemort, Euphemia Potter,
Tags
Developing Relationship Blood and Injury Secret Relationship Falling In Love Character Study Not Beta Read Canonical Character Death Canon Compliant Kind Of War Translation Song Lyrics
The first time he had had the urge to kiss Regulus instead of casting a spell on him was during his fifth year. And he wasn't proud of it.
Pensieri e Parole

Pensieri e Parole

F/M
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, James Potter/Lily Evans Potter, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Severus Snape, Euphemia Potter, Fleamont Potter
Tags
Developing Relationship Blood and Injury Secret Relationship Falling In Love Character Study Not Beta Read Canonical Character Death Canon Compliant Kind Of War Song Lyrics Partner Betrayal
La prima volta che aveva avuto l'impulso di baciare Regulus invece che lanciargli un sortilegio, era stato durante il suo quinto anno. E non ne andava fiero.
in death, we will not part

in death, we will not part

M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Original Male Character(s), Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Evan Rosier, Barty Crouch Jr.,
Tags
Character Death Hurt/Comfort Emotional Hurt/Comfort Angst and Hurt/Comfort Implied/Referenced Self-Harm Partner Betrayal Implied/Referenced Suicide attempt
Regulus died and came back to Alex as a ghost.~~~Alex is a gender fluid character I've created, he is mainly based on me and my desired appearance, which is pretty close to my current appearance. She is male in this scenario because I hc Reg as trans...
Heroes

Heroes

F/M
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Sirius Black/Remus Lupin, James Potter/Lily Evans Potter, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter
Tags
Fluff and Angst Hurt No Comfort Marauders Era (Harry Potter) Marauders References to David Bowie Partner Betrayal
I, I will be kingAnd you, you will be queen....We can be heroes, just for one dayFor a moment they were invincible.The next, they were heroes. Just not the way they had hoped.A happy moment and sad one, set to the track of David Bowie's Heroes.Obligi...
Betrayal by the one you trust most

Betrayal by the one you trust most

M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Harry Potter, Tom Riddle | Voldemort, Harry Potter/Tom Riddle, Harry Potter/Tom Riddle | Voldemort, Harry Potter/Voldemort
Tags
Angst Murder Partner Betrayal Dead Dove: Do Not Enter Discord's Summertime Sadness Server Event 2023
Harry thought their anniversary would go just as usual.He was wrong.
The Secret Remains

The Secret Remains

F/F
F/M
M/M
G
Updated
11.04.2025
Fandom
Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
Characters
Donatello & Leonardo & Michelangelo & Raphael (TMNT), April O'Neil/Sunita (TMNT), Donatello (TMNT)/Original Male Character(s), Michelangelo (TMNT)/Original Character(s), Raphael (TMNT)/Original Female Character(s), Leonardo (TMNT)/Original Male Character(s), Hypno-Potamus/Warren Stone, Splinter (TMNT)/Original Female Character(s), Baron Draxum/Splinter (TMNT)
Tags
Betrayal Blood and Injury Bullying Polyamory Friendship Childhood Friends Alternate Universe - High School Michelangelo Has ADHD (TMNT) Nonbinary Donatello (TMNT) Autistic Donatello (TMNT) Partner Betrayal Good Sibling Raphael (TMNT)
When Lou Jitsu saved the turtles from draxum he found four cloaking broaches, not knowing what they were he grabbed them, with the turtles and ran. here is the story of how Lou raised four turtles, as if they were normal children, giving them what he...
Anabell Vox’s Betrayal

Anabell Vox’s Betrayal

F/F
F/M
Multi
Other
G
Updated
12.04.2025
Fandom
Marvel Cinematic Universe
Characters
Original Characters, Tony Stark, Sam Wilson (Marvel), Natasha Romanov (Marvel), Clint Barton, Thor (Marvel), Clint Barton & Natasha Romanov, Avengers Team & Original Female Character(s), Sharon Carter & Steve Rogers, Natasha Romanov & Original Character, Thor & Original Character, Sharon Carter (Marvel)/Original Character(s),
Tags
Canon-Typical Violence Implied/Referenced Character Death Gun Violence Ambiguous/Open Ending Partner Betrayal Back stabbed Alternate Universe - Renegotiated Sokovia Accords No Avengers: Infinity War Part 1 (Movie) Spoilers
Anabell Vox (Original Character) is an agent apart of SHEILD. She wasn't seen as special compared to other agents. She wasn't a master shooter or a master code breaker. No, she was just like any normal agent. At least that was true until the day she...
You Reap What You Sow

You Reap What You Sow

F/F
G
Updated
12.04.2025
Fandom
Original Work
Characters
Original Character(s)/Original Character(s), Yurei (oc), Kumo (oc), Xuanlu (oc), Fuji (OC), Okami (OC), Ryu (OC)
Tags
Angst Eventual Happy Ending Heavy Angst Hurt No Comfort Kissing Cheating Implied/Referenced Cheating Getting Back Together Toxic Relationships I Made Myself Cry Running Away Partner Betrayal
A story of two a couple, one who openly cheats on her partner, and one who can't bring herself to break up with her partner. Eventually leading to consequences of their own actions.
Permissão

Permissão

F/M
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Severus Snape, Narcissa Black Malfoy, Narcissa Black Malfoy/Severus Snape
Tags
Smut Unresolved Sexual Tension Sexual Tension Sexual Fantasy Partner Betrayal
Ela o queria. E para o seu maior desespero, ele sabia.Uma bruxa de sangue puro, orgulhosa como a maioria dos sonserinos. O que, em nome de Merlin, ela viu naquele mestiço arredio, sem nenhuma tradição familiar que não poderia oferecer nada além de um...
She's just a friend

She's just a friend

F/M
G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Harry Potter, Draco Malfoy, Hermione Granger, Hermione Granger/Draco Malfoy, Narcissa Black Malfoy, Theodore Nott, Pansy Parkinson, Draco Malfoy/Pansy Parkinson, Theodore Nott/Harry Potter
Tags
Betrayal Cheating Heartbreak Partner Betrayal
Draco's POV to friends to lovers, as per requested by @kalopsiawitch
A Coup in the Rain

A Coup in the Rain

F/F
F/M
Gen
M/M
Multi
G
Updated
13.04.2025
Fandom
World of Warcraft
Characters
Jaina Proudmoore/Sylvanas Windrunner, Jaina Proudmoore, Sylvanas Windrunner, Baine Bloodhoof, Jastor Gallywix, Rexxar (Warcraft), Eitrigg (Warcraft), Lor'themar Theron, Thalyssra (Warcraft), Ji Firepaw, Geya'rah (Warcraft), Liadrin (Warcraft),
Tags
Angst Alternate Universe - Canon Divergence Betrayal Hurt/Comfort Comfort/Angst Fluff and Angst Angst and Humor Alternate Universe Comedy Rain Metaphors meetings
Sylvanas stepped into the clearing with the appeal of a drowned cat but the charisma of a lion. Each step was with purpose as she calmly made her way into the clearing, her eyes glowing their usual crimson red and twinged with mild annoyance; as thou...
Walk Out That Door

Walk Out That Door

F/F
F/M
G
Updated
13.04.2025
Fandom
Law & Order: SVU
Characters
Olivia Benson/Alexandra Cabot, Olivia Benson, Elliot Stabler, Olivia Benson/Elliot Stabler
Tags
Angst Hurt Oneshot Lies Partner Betrayal Rebound implied Cabenson office affair WPP actually happened Elliot's POV
Elliot finally falls into bed with Olivia during his separation from Kathy, but it is not what he expected.