Next weekend I will be going to a concert and I am afraid I may be running into my ex-Boyfriend I broke up with in May of this year. IF I do run into him, should I talk to him or ignore him, or does it not matter? When him and I broke up, he cut ties with me altogether, blocking me on all social media and phone contact, so if we did see one another at this concert, he may not even talk to me but what if he does? I don't know what to do or think. What would you do in this situation?

And I am only asking because this concert venue is small capacity like 100-300 max. So us seeing one another is very likely.