Due to issues with DC's my DP spends an abnormal amount of time with exP - think a couple of full days together each month. This isn't going to change anytime soon and something I know to accept. However exP features very heavily in conversation with both DP and MIL - always brought up by them, although never favourably for various reasons. It drives me mad, I just don't want to hear constant talk about her. How much would this annoy you?