I'll keep it very short!
20 years ago, had a relationship with a guy. It lasted around 4-5 years, started when I was 21/22. He was a bit older.
We split quite badly, and completely unnecessarily so. He contrived a situation to hugely embarrass, belittle and humiliate me. Of course, this was quite obvious, and people thought quite lowly of him for it, but it was sexual in nature and so I still felt quite a sting. It was very exposing and yuk. There are others things I could say he did over those four years, but you get the measure of the man.
It turns out we now have children of a similar age and last week I find myself standing in proximity to him at a kids activity. Totally shocked and surprised. I tried to talk to other parents, but he made a beeline for me and started talking to me in a 'catch up' type of way. I wasn't giving much back, but he seemed to be enjoying it. This week he called out to me but I pretended to not hear / be on the phone.
He will find a space to come up and chat to me. I want to say to him 'the last time I interacted with you, you did X, I don't want to talk to you'. It'll probably not stop there, I know. But i cant stand that he thinks we are ok.
How would you deal with it? I don't want to have to keep pretending i'm on the bloody phone for the next 8 weeks of the term! He acts like we're friends, calls my child 'buddy'. I' just so triggered by it.