Or AIBU? My ex and I split acrimoniously 2 years ago and I always struggled with my interfering MIL during our relationship. The ex and I co-parent fine now. When we split, i got a lot of my feelings for my MIL off my chest to her and we are NC now. My DD spends 3 school nights at my ex's. The rest of the time with me. It's my 11 year old's birthday this week and she spent the day with her dad and his family. My exMIL, as part of her birthday present to her, gave her some personalised notelets with my DD's name and my ex's address on them. I've taken this as passive aggressive gesture. As though her main home is at my ex's. I know i should brush it off, but I feel she's trying to have a dig. Am I being over-sensitive or is she being a goady c**t?