My sil said some rather awful things to her and DH's brother about me and I overheard. This was about 7weeks ago. I told her I overheard and she denied it but her brother confirmed it to DH. I told her that I would not be going to her house and she was not welcome in mine. Yesterday I went to work, did the weekly shop and went home. I fixed DH and the DC a salad and went to a girlfriend's to see a movie and enjoy not having our children. SIL then sends me a message on facebook saying I need to get over what I think she said and that she knows it is my fault we didn't go to her house that evening. I honestly had no idea what she was talking about and told her as much. I called DH and he said she had invited us and he'd declined because he was spending time with the DC alone. DH isn't speaking to her much anyway. I told DH when it happened that I wouldn't be going to her house but had no problem going to his dad's and that I wouldn't get upset if he went to his sister's. AIBU to keep avoiding SIL.