AIBU to expect DP to stand up for DD.
DP and I have a 3.5 old child together, he has 2 other children 18 and 22 from a previous marriage, the split was very difficult on everybody. His children dis own our daughter as do some members of his family.
On Wednesday last DP and DD met his sister and five year old daughter (dd's cousin) who meet often in his mothers house. When he went to say hello to them in public both he and dd were ignored. AIBU to expect him to confront her about this and to ask her where does this leave relationships between her daughter and his.