My ex husband broke up with me over lockdown so I had to stay there until everything re-opened. We have a 6 year old DS so we stayed amicable. I've now moved to a lovely little village 5 mins walk from DS school and we are setting well. Ex DH broke up because he wanted fun, excitement and didn't want to stay settled down. He is military and we have moved 5 times in 9 years of marriage. Suddenly, out of the blue last month he bought a house in my village, 100m from mine. I was totally shocked. This was everything he never wanted. I don't fully understand why he has done it but he keeps saying it's best for DS. I can get on board with that but now he will be everywhere I look, probably with a girlfriend in no time at all, in the village I moved to less than 6 months ago. It feels selfish and unfair to me. How do I move on when he is so close? AIBU to ask him not to do this?