Dd went to visit boyfriend they both 19. He has a single bed in his room but there is a double bed in the spare room. The spare room isn't used and needed decluttering which bf didn't get around to despite having the summer "off" and not getting a job. His mum gave up her double bed and slept in his single. Dd and bf slept in his mother's bed/bedroom.
Dd has major ick now and I think I'd be the same. She's very sad as she loved him til she saw him in his home and the way he interacts with his mother, apart from the icky part of sleeping in his mothers bedroom with all her personal things etc.