Don't tell him anything
"Good morning, Mr Black. Sit down so we can start discussing your situation please" said the headmaster smiling at the Slytherin who had just entered.
"With all due respect, director, but I don't think it's appropriate for us to talk about my situation" he replied with some disgust in his voice "in front of other students"
"Don't worry Regulus, Remus is here to help" this time it was Professor McGonagal who said
"I don't see how, unless you intend to tell my brother and if that is the case I don't want him to know so there is no need for your extension to be present during the conversation" he said in a cold voice pointing to Lupine
"I'm not an extension of your brother, Regulus," replied Remus, "and I'm here because I'm in the same situation as you, so please shut up and sit down."
"You can't give me orders Lupin, I'm not an obedient puppy like my brother"
"That's enough boys" said the direct one, standing up "Mr. Black, Mr. Lupine is a werewolf, since before he arrived at Hogwarts, he is here because he knows what you are going through and can help you. Now please sit down so we can to talk"
Still upset, Regulus sat next to Remus, in the chair indicated by the director. His fate couldn't be worse he thought to himself, of all the people in the world Lupine was the one there, and now he knew about the thing he most wanted to hide. He swore under his breath asking the universe to be kind to him for at least a moment and that Remus didn't tell his brother he didn't need Sirius to find out, he definitely didn't need his brother to feel sorry or look at him with disgust. He could handle the disappointment and anger, but the disgust and disgust were too much for him.
"Mr. Black, are you listening?" He was taken out of his thoughts by the serious voice of Professor McGonagal who was behind him, only then realizing that he wasn't paying attention to anything while he was rambling in his own mind.
"I'm sorry Professor Dumbledore" he asked without looking at the older man moving his fingers impatiently in his lap, he was afraid of what would happen next. He was afraid of where he would be forced to spend his full moons, because of the stories his parents said about what happened to these unclean creatures. And looking at Lupine now he also understood his scars, he just hoped he wouldn't get hurt too much, he was tired of feeling pain. "Can you repeat please, I ended up getting distracted"
"I was just explaining that you will spend the nights of the full moon with Mr. Lupine in the Shrieking Shack. I don't want you to worry, you will be fine, everything is being kept confidential just me, Professor Minerva, Madame Pomfrey, the head of your home and now Mr. Lupine we know about your condition. And I guarantee that we will do everything we can to help you"
"Thank you teacher" he cordially thanked him without believing one hundred percent in the director's words, for helping. It could only be a joke that there was no point in helping now that he wasn't lost. “Teacher, who told you about my condition?” I ask, he knew she hadn't been his mother, she wanted more than anything to hide it, even though she was responsible for causing it
"Your cousin, Bellatrix, she was worried about you and decided to look for me" replied the director, poor innocent old man really thought that Bellatrix would tell him out of kindness and concern for her cousin, Regulus better than anyone understood she had done it to humiliate- lo "Well, you two are dismissed for now, when the next full moon is closer they were called here so we could talk better. You can go back to your tasks now, boys. I believe you already missed the class for now so you can spend the time until lunch as prefer" concluded the director. Both boys got up and left the room.
"Lupin, can we talk please" Regulus asked, his voice and posture calmer than a few minutes ago in Dumbledore's office, but still fearful he continued to move his fingers nervously, clicking them.
"Sure, let's talk. Want to go to the library?" asked the boy, turning to him
"Yes, it's better" and they walked away from each other in complete silence through the empty corridors since most of the students would be in classes at that time.
When they arrived at the library, Regulus went ahead and went to the back of it in a more isolated area. Where he used to stay when he wanted to read without being disturbed, getting there he sat on a beanbag pointing the other for Lupine to sit on.
"Don't tell him" he asked, being direct, he hated beating around the bush "I don't want him to know and even though I know that you are friends and I... we don't even know each other, I beg you, please don't tell him"
"I won't say" replied Remus firmly "the secret isn't mine to tell, but I think you have to know that at some point he might get suspicious"
"I think it's difficult for him to suspect something if we're not very close"
"Do you intend to drive him away?" he asked, raising an eyebrow "I don't think it's a good idea, you could both end up getting hurt in this, maybe you should tell him, he'll understand that, I can guarantee it"
"No, you can't guarantee that he will understand Lupin. And I'm not going to tell him, my decision has already been made, the only thing I'm asking of you is that you don't talk, I don't want you to have an opinion on anything he says about it." of my life" the irritation was clear in his voice, and like his brother he wrinkled his nose as he stood up, which made Remus laugh internally.