<human>: This whole situation makes no sense to me but I need some sort of insight.

I dated a guy for almost four years. He cheated on me a couple times and I eventually dumped him after I found out he had side girlfriend.
When I found out, I was already looking for a way out of the relationship so the break up and the cheating did not really bother me much at all.

My ex and I hooked up a couple times during the summer and that's when it began. I would drink and call him telling him how mad I was about him cheating and blah blah but I figured that was normal because he was still semi in my life.

Fast forward to today, new boyfriend who is the kindest, funniest, cant-believe-he's-into-me, kinda guy. I got drunk with some friends to start out the new semester and sent him snapchats about my ex cheating. 

I am at a loss here. Sober, I have zero thoughts about my ex and I certainly do not take time to think about his indiscretions especially now that I am seeing this new guy. 

Can anyone shed some insight if you have been in this position? My new boyfriend understands that I don't feel anything for my ex but I am absolutely terrified to drink now because I don't want to lose this guy. 

I have considered checking out therapy on campus but it all seems to ridiculous since I really do not think about this stuff sober!

Can you provide a brief overview of the text?
<bot>: Ex cheated, now whenever I get drunk I talk to my new boyfriend about how upset I am that my ex cheated. NOT something I think about sober. Advice?