Yes, part of the problem is that the whole house, including his room if she's spending most nights there, is going to be THEIR space instead of HIS space.
I want to ask him to limit the number of nights they spend together, or to spend as many with me as he does with her, but that feels selfish...
I've been dating my boyfriend for five months, and he's been dating his other local girlfriend for about four months. She and I get along well, and recently we've been trying to spend more time together, the three of us. He's been having financial issues, is going through a divorce and custody...