I know he's been in two relatively long term relationships before we dated. Before we dated he hadn't been in a relationship for almost a year. He has said that his last girlfriend was kind of crazy, and that's what his friends have said- (i.e. had to change the locks on his house) but that's all he's really told me. The woman he dated before her apparently left him (he hasn't brought it up, but my friend has told me about it.) and they lived together. Apparently it ended because he had a problem with her smoking marijuana sometimes. I don't really know anything else about her.
When we are around his friends, he can chatter on and on about his interests and carry on. He includes me in the conversations and it's always fun. When it's just us- I feel a shift in it- almost like I make him uncomfortable, but he says that I don't. We hang out all the time, but I feel like he thinks I'm judging him all the time or something. He'll say "Oh you don't care..." after he tells me about his projects hes working on-- I repeatedly tell him I do, otherwise I wouldn't ask him a million questions about it. I always go in for affection. ALWAYS. We have had previous discussions as to why he isn't affectionate very often. He tells me he knows he is bad at it, and he has made an effort to try and be better at it but I don't know what the root of the problem is? I know that it's probably not me, but I don't know how to figure him out.
His parents are divorced, I have met both of them. He has a great relationship with his dad (who raised him after the divorce), and a borderline not good relationship with his mother (rarely talks to her, he left her house at age 15 to live with his dad in the middle of the night because he was unhappy he told me.) He talks to them very freely, but never any hugs, or anything like that involved.
His friends, and a mutual friend of ours (one who introduced us) says he has always been a very reserved person, very quiet, but very nice guy. We've been together for 4 months so far, so I know if he didn't want to be with me he would have ended it already. Plus, I keep getting paranoid and straight up asking him.