AIBU to be annoyed here? SIL has been doing a few of what I believe to be “spiteful” things recently. My DS was in her company the other day and he mentioned about something new he had seen and they looked cool , but “mum is going to order me one!” As soon as he said that SiL told him “oh I will get you one anyway, ill pay for it to arrive faster than mums one and ill buy a few extras to go with it” 🧐 she did not bank on DS (9) telling me this. She is coming over this evening uninvited for my DD’s birthday (I had invited MIL and FIL, but she told my son she would be taging along!) aibu to be a bit miffed and to think that there is some strabge one up-age going on here with her? She is DH’s sister