Still 'pure'
Marvolo's girlfriend Gormlaith is visiting.
Marvolo muttered, "You won't be too pleased with my children."
Gormlaith asked, "Why?"
Marvolo told her, "My son, well, Morfin has been secretly dating our Muggle neighbour who impregnated my dear Merope. Merope, she, ah, has been having difficulties with her magic and she ran away to a magical school with the Headmistress who she's dating." He frowned. "I'm afraid what you will say as you always wanted the bloodline to 'stay pure'. Are you mad, Gorm?"
Gormlaith shook her head and sighed. "My vision of a pure bloodline is an old tradition that is frankly utter rubbish nowadays. Our bloodline is still 'pure' because we all love each other and that is all that truly matters" He pulled Marvolo to face her and smiled. "You are still 'pure', Marv. I love you.'"
Marvolo beamed, "I love you too."