<human>: I've been with her since high school and she was my first "real" girlfriend. First girl I had sex with, talked about marriage with, you know all the good stuff. 

I'm fully preped for the hatred in going to get from you reddit so give it your best shot! Lol!

After about a year with her I went from being head over heels in love with her to just in love. Now here I am after 3 years and I don't even know if I love her anymore. I have thought about talking to her about it but I hate bringing this stuff up because she'll just get mad and offended and it won't go anywhere. 

About a year and a half ago something happened but I won't go into details. Basically she lied and she though I believed her but I never did for a second. I'm about 99% sure she lied and it's about something big. Ever since then, things haven't been the same. 

I feel like a Seinfeld character because I'll always have a reason to break up with her in the back of my mind that really is insignificant. Something small like we aren't voting for the same person, you don't like the same music as me, you do something weird. Just dumb stuff like that.

If you would have givin me insight on this relationship 5 years ago I would be screaming at myself for even thinking about breaking up with a beautiful girl who genuinely loves me. She's everything a guy could ask for. Granted she's not perfect but neither am I. I'm far far far from it.

I feel like you don't get much better then what I have now. So me being unhappy... I feel like it means I'm just not meant to be with someone else. Shouldn't I just look past what little flaws she has and love her just like she does for me?

I don't want to do something I regret... Wether it be staying with her or leaving... I don't know anymore

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: girlfriend and I aren't connecting like we used to probably because of how I'm losing interest. I'm not sure why.