I just need some advice/a sounding board if anyone can help.
I have a son, dp has a son (both live with us, my son full time, his son stays at his mums 2 nights a week but she takes him to dps mums or dads for the day times). We also have a newborn daughter. We have a very loving, happy relationship and household. It should go without saying but all children are treated fairly in our house and have/will have the same rules and boundaries as well as 1:1 time with me and dp.
The issue is with dps mum. I thought we got along well, she seemed excited the whole pregnancy but since our daughter's been born she seems to have changed. It's like she doesn't trust me to have all 3 children. She had dss the other day and he was coming to ours that evening so I said I'd fetch him. She asked if I had the other 2 children which I did and she told me not to pick him up. This meant dp would have to fetch him when he finished work, an hour past dss's bedtime. Dp spoke to her and said I would be fetching him as planned, when I fetched dss she was clearly unhappy and gave me a huge bag of treats which she said she'd bought for dss and dss only. Prior to this she treated both boys the same just like my family do.
She always says things about me having all 3 like "hopefully you'll manage them all" "you'll have to phone me if you can't manage the children". I don't know where this has come from. I've never asked her to babysit. I brought my son up alone until I met dp and built my career when he was a toddler. I never asked anyone for anything and I did a bloody good job. I can "manage" our children perfectly well, the boys are very well behaved.
Finally, if I've mentioned something about our daughter (usually after she's enquired about her), or my son, she'll completely ignore it and say something totally unrelated about dss. Oh and she has said around 5 times that I'm selfish for breastfeeding because her and my dp can't feed dd. Dp has never said anything like this to me.
This is all said when dp isn't there or via messages (I've kept them all). I don't know whether to say something or to ask dp to say something or just leave it. I don't know if I'm being silly but it is upsetting me and makes me feel like ds and dd are being treated as "less than".