Happy belated Birthday!!! I celebrate that you were born, but late. You are now just like the rest of my friends and family, I am never on time anymore. An LBS leftover for me.
IMO, he wants to prove you are still "friends" and you just "grew apart". See how non confrontational we all are? It's not his fault at al. I had a live in for 18 months. At the time I didn't realize I was in He!!. But I was, it was a mind spin. See, he is so reasonable it must have been me, except the only people I have ever has issues with are people who were just like him: couldn't make a decision, but when I made the decision they go the opposite of what I decided and try to override me, don't say what they mean or mean what they say, pretend everything is fine when in their mind it isn't, undermine people behind their back, lie about other people, lie about their own abilities. I could go on. You are looking for logic from a person who is not thinking in a logical manner.
Set your sights on YOU, moving forward. If he gets his head out of his.....fog (as UM would say), then you are in a good place. If he does not, you are in a good place. You cannot lose when you plan for yourself. I, personally, got a job where I could support myself, made sure it had flex time so I could go in at o dark thirty, spend my "lunch" hour getting my son to school at 8 am, get off at 3 to pick him up from school. I lived on nothing so I could save enough to get my D through college. It was two years of automaton up, work, deal with son and school, sleep rinse and repeat, and another year to get my bearings. The 18 months my XH lived here was a nightmare compared to living alone. Live in are not for the weak. In my case, he left anyway, but I was in a good enough place financially to be ok.
I tell you this because just waiting is a fools game, imo. You can stand and still move yourself forward. He will do what he is going to do. You dont get to control it, the only person you control is you. Take care of you and your D, make sure you will be ok if he stays or goes or ends up in a traffic accident. It's hard, it's scary, it's doable. Take a deep breath. You can do this.