<human>: I dated my best friend for a little over a year until it weirdly ended after graduation. Like strange, barely talked about this breakup it just went away "due to distance". He kept it open ended and said "maybe when we are in closer distances it can work out" Long story short now a YEAR LATER, he is living 30 minutes from me and I haven't seen him. He still texts me EVERY SINGLE DAY. he thinks we are BFFs again. Yet won't be irl friends? 

So we have been so-called friends again for about a year now. He refuses to hang out though. And then recently, through social media, I noticed he's been hanging out with his "horrible, cheating, dirt bag" ex again. But not telling me about it. I didn't like the girl in the first place since I only heard bad things. I thought i was completely over all of it and him but seeing his ex pop up again knocked the wind out of me. 

I cannot seem to move past it. I cannot stop thinking about anything else besides this. I haven't addresses it with him but I think it would be crossing a line since we aren't dating or anything. But it is so mentally distracting and hurtful that I am afraid it is going to mess with my studies once graduate school starts again. How do I move on from this? I thought this was so far in the past, but it feels like I've been newly dumped. Everyone says he's a douchebag (like in general not even in relationships) yada yada but I cannot seem to look at him that way. I don't know how I'm going to get over something I didn't even know would be a problem.

Condense the text into a few key points
<bot>: Ex of over a year is back hanging out with his horrible ex. I feel heartbroken even though I thought I was over it. Please help SOS send ice cream&puppies