Bf's PMS-like behavior drives me crazy!?

Question

I have been dating my bf for over a year now. We havent had any problems with the exception of two fights (1.he was mad at me one time when i brought something up about his past..im still not over that..and 2.he said i try and keep him away from his friends...i dont, he must forget his ex gf, not me, came between him and his friends) ANYWAY
I would say for the first 6-7 months or so everything was almost perfect..but now I just dont know whats changed.
1. He NEVER says he misses me anymore..no more than a week will go by but I miss him all the time.
2. He does say I love you, but only when we hang up the phone, like its just another word for bye.
3. Sometimes when I stay more than one night (we live an hour away so I stay over the weekends sometimes) he gets really moody like hes tired of me or that I am some annoyance to him.
4. Any time I bring up his "mood" he says "well I bought you that ring..and " whatever it is at the time") to justify his behavior.
More...

5. He gets mad when I call him at work or even at home sometimes. Although, when we first started dating he asked me to call him all the time.
6. He used to talk about our future, now its "we'll see".
There are tons of other things that just arent the same. I feel that I always go out of my way to make him feel special and do things for him whether we are together in person or not. I am never moody with him and I am always supportive..(ive recently gone through some tough things and he hasnt helped me much-even when i asked)
I just want to know what you would do in my situation or why he would be acting this way. I have invested TOO much in this relationship to give up on it so soon.

Thank you

Answer 1

just give him some space. let him go out and chill. stay at home for a few weekends u kno. just back off a lil bit so he can breathe and go do ya own thang. if that doesnt work then just go. i kno it'll be hard but its easier than goin thru the pain ur goin thru now.

Answer 2

maybe he thinks your too clingy for him..... back off a bit and if he comes after you, he likes you and if he doesn't he was only after one thing. don't pressure him either they hate that.