Hiding something...

Been with the same guy 2 years.. He said we aren't boyfriend and girlfriend we go with the flow. He wants to always go through my stuff but I don't go through his... He told me I was hiding something because I didn't want him going through my Facebook pics... He said that's why u aren't my girlfriend.. We just go with the flow so feelings don't get hurt, but I think it's too late for that...his phone rang 3 times, then he got a text 2 times and a FaceTime. He told me it was a girl from his old college, mind U it's midnight why would a friend be blowing U up like that. I'm not dumb, I don't go through his things honestly because I know I'll see something and I just don't want to I don't want to believe he would hurt me, but he already has.. I'm just drained I look horrible all the time I'm tired.. And when he left I called him no answer so I know he card that person back.. What yall  think? He has said some mean things tonight and this isn't the first time