Or is all4reddit right, has he just lost interest?

I swing back and fourth from believing that, or just believing that he just takes things too literally/is just like any other guy his age.

I think that the movie offer is actually a response to what we talked about earlier in the week. I expressed to him that I was sad that he rejected plans that I tried to make with him recently, he said that it was literally just because he didn't want to do that specific thing, not because he didn't want to spend time with me. I told him that I would have been totally open to a different suggestion and that from now on he should know that he can make one because if I ever say "let's do ___ together".. it's likely because I'd really just like to spend time with him, not because '___ event' is my priority. I also expressed that I wished that we spent more time together (because we spend very little)...

So I think that the movie idea is a response to this conversation on his part... but by doing so he totally missed the mark, the point that I was trying to make in the first place...

Or could it be that he just isn't interested in me anymore. I don't understand because I take really good care of myself physically, more so than I did when we first met, I'm getting really fit and I look good.. he even expresses that he thinks I look great, from time to time.. He still gets possessive/protective of me when we're around other people..

I don't know. It just doesn't add up.