Would you mind if your XH moved house to live just a few doors down from you?
Mine has form for snooping on me (despite him being the one who had the extremely long affair!) and is still half-heartedly trying to win me back.
And now he's moving back to my town, and looking at houses within spitting distance of mine. He asked if I minded the proximity. I said I'd think about it, but actually I do mind. He claims to be a changed man... but I don't trust him. I don't trust him not to spy, pop round unannounced or let himself in when I'm not there (he has a key, the house is half his).
Is that petty? I'd feel petty saying it, because he's doing it to see more of the DC and be able to help out more with them.