Short back story - I have a 14 month old and I'm 7 months pregnant. Both sets of grandparents live nearby. I've had a few problems with MIL over the past 14 months, she's very possessive of my daughter for instance anytime she looks after her she doesn't answer the phone, doesn't tell us where they are until afterwards because she doesn't think they need to ask permission and we keep repeatedly asking them to stop buying toys for their house, she has so many toys it's beyond ridiculous. We were told within weeks of daughter arriving they would see her every Thursday and insisted on having time 'alone' with her e.g.: going for a walk or out to lunch. There's hell to pay if we ever try to cancel 'their day'. This has now become Tuesdays and Thursdays. They were all set to kit out their spare room as a nursery before my daughter arrived, they bought a cot, pram, were going to put her name on the door until it reached a stage it was freaking me out and DP asked them to calm down and pointed out daughter wouldn't be staying there until she's much older. They have their own clothes for her at their house and I found out by accident they change her clothes into their clothes when she's at their house.
Today, I took her up to see them and discovered they've bought her a baby doll complete with bottle, nappies, blankets, crib etc. Two months ago they said they wanted to buy her a baby doll kit and I asked them not to because we've bought one for her as a present from the new baby when he/she arrives. I wasn't rude or angry, I just politely pointed out we've bought all that as a gift from new baby and reminded her we asked them not to, she denied all knowledge of conversation and went on to tell me that our doll etc will be at our house and theirs is at their house so she can't see what my problem is. Then started showing my daughter how to feed the baby doll!! At that point I said I thought it was best I didn't stay and they'd have a better afternoon if I went home, she replied 'Because you're upset we've bought her dolls?' We reached the doorstep, I kissed my daughter, turned around and took a step down and she'd shut the door on me with my daughter inside! I can;t believe yet again she seems to think she can do whatever she wants with my daughter! I accommodate DP's parents a lot but they seem to think they have a right to do and say what they want even when I've asked them not to. Am I being unreasonable?