DSD mum has always kept DP and I at arms length, we've tried very hard in the past to keep things friendly. Last year she stopped talking to me all together.
DSD has told my DD that her mum is going to invite my DD and DP to her birthday party, but not me.
I feel upset, obviously. But I haven't said anything yet because I don't know how I should react. I don't know what the RIGHT thing to do is.