<human>: Condense the text into a few key points

Ok, so a bit of a weird situation here, anyway, the other day, my good friend and roommate of three years left his laptop open to his facebook messages. Curiosity got the better of me, and ended up stumbling on two conversations with two other people, where he kinda shat all over me for various reasons (some of which were completely wrong interpretations by the way), and complained about the various ways I was annoying him. There was another where someone asked why I was in his profile picture, even though he didn't like me. I know I shouldn't have read, and am paying the price now, but I can't unread what I have already read.

Prior to this, I thought him and I were very close friends, not best ever, but certainly very close, and at this point we still hang out all the time, and he has no idea I saw what I did. I've sorta had suspicions like these for a while, but every time I tried to bring it up, he downplayed it and pretended like there was nothing wrong, but obviously he has been getting annoyed for a while. I know that sometimes I can be a lot of friend which can be annoying, but if you tell me to shut the fuck up, I will and go about my business. I think the thing I am honestly most afraid of is that he doesn't give a shit enough to try and make things right. All that said, our friendship is actually okay most of the time to the best of my knowledge.

I have absolutely no clue how to handle this! I have a lot of anxiety about my friendships in general and certainly don't want to make things worse. I do think its possible that I'm blowing this out of proportion and of context, but I don't want to be putting time and energy into a friendship thats being maintained out of convenience than ya know, being friends with someone.
<bot>: Mandatory summary/question! Read something I shouldn't have, found out my roommate and good friend likes me a lot less than I previously thought. What do I do?