She constantly takes umbridge over the slightest little thing, and this is the latest...
DD1's 5th brithday party today, sis and her DP turn up as everyone is leaving, no problem, if I was childless I probably would avoid kids parties like the plague too. She has bought my DD a make up set, something we have had conversations about in the recent past. I had said that I don't want my 2 DDs growing up too quickly, and don't think make up etc is appropriate for their ages, but she bought it anyway.
I didn't say anything as there were still lots of people around, but looked at her so she got the message that I wasn't happy. She stormed out of the house, and sent me a text saying that as far as she is concerned, we are finished. She even tried to get my mum to bring DD1 to her flat afterwards, so she could see her. DD1 said that she didn't want to go.
AIBU to just let my sister cool down and ignore the text she sent me, and wait for her to see my view on this?