Long story short my ex and I broke up on not great terms for a number of reasons and I would love to never see his face again. However, I made the terrible mistake of dating a teammate (never. again. ever). So coming up here in the not so distant future I'll be stuck seeing him and his friends on an almost daily basis at practises which is really quite unfortunate. What's the best way to deal with this scenario tactfully? He's the kind of guy that's still great friends with all of his exes and I really just want to expunge him from the last two years of my life and my future. Any advice on how to deal with him?