<human>: Can you provide a brief rundown of the text in within 3 sentences?

So my post history talks about this guy, basically dated for 3 months and I'm still obsessed with him. 

Anyways. We live in different cities that are close by, and both cities have different chapters of the same running club. I want to go to the running club meetups in his city more because the runs happen more frequently and there are more guys to meet. However, he sometimes goes to the runs in the city, although he mainly runs in the suburbs. How do I avoid running into him (no pun intended?) When there was a big run, I texted him, and he politely told me he wasn't going to that run and that he hoped I had fun. Fwiw, I also found out that he had a new gf through the grapevine in the running club. I burst into tears and left the run early.

Should I text him every time before I run in his city, on the off chance that he'll be there? This seems like a bad idea. Do I message him explaining the situation, that I want to run more in his city but don't want to see him, and try to work out a system? Do I leave it alone and go the runs knowing that I'll have a mental breakdown if I see him? Do I not go to the runs, but then miss out on possibly meeting new guys? Every time I go to these runs, there are more men than women and I get hit on a ton. Running plus getting hit on really builds up my low self esteem.
<bot>: Don't want to see ex at group runs. Do I skip the runs, which I really enjoy, or risk running into him, which will cause a mental breakdown?