Sometimes I think I wasn't meant to be in a romantic relationship ever. 

Just now, broke up with a friend (let's call him X) who I was dating because I don't know how to do this. Lost my temper, broke glasses. Left him crying. And all the time my brain is building up alternative explanations about how I am not the wrong person. It won't stop. 

Here me out:  I don't know if it is cheating but X and me were not exclusively dating then (atleast not in my head), just goofing around so I went out with a couple of other guys as well. BUT I hid it because I knew X won't like it. Anyways once things were serious, I straightened out, got into a proper relationship with him and took care of him as he took care of me. Eventually I didn't think it was working out so around a month and a half ago we broke up and agreed to remain friends. In the meantime I reached out to the guy I previously had seen. I'd left him suddenly but with explanations. It didn't go the right way. 

Fast forward to today, I went to see X, decided to get a couple of beers from the supermarket, left my phone at his place. I remembered it when I was in the elevator but I decided to trust him. (He has gone through my phone twice on previous occasions but because I was 'guilty' of 'cheating' I hadn't made a big deal out if it then). Anyways, I come back home, his mood is off so I am 100% sure he has gone through my phone. 

So, I decide to tell him, yes I did go out with someone else. Because he put his hand into a hornets' nest by looking into my phone. It's a huge privacy violation! 

So fight ensues, things break, I leave. And I leave with a sense of doom that I'll always be alone. Please tell me I am wrong.