He says his jealousy is because he doesn't want to lose me. I have pretty much only male friends so I figured that talking to them wouldn't be a problem. Also judging that he still talks to his ex (as friends of course.) 

I have no issue with that. But lately he's been over-protective and our relationship feels like it's moving backwards. I don't feel sexually attracted to him anymore, I get anxiety when I think about hanging out with him because I know it's gonna be boring, he's smothering me, and it feels like we're just friends. But I don't wanna ruin anything because this is the most serious relationship I've ever had. 

Help.