I really don't want to go to my niece's birthday party. She will be 3, there will be looking s of people I don't know and some that i do that I don't get on with, even eg her dad. I made myself go the last two times. Last year my sister seemed in a bad mood with me and the paternal grandfather was moaning about no one else making effort. I don't even think my niece will realise if I'm there or not but my family overreact about a lot of things and I don't want a big row or to be made to look unkind. I have got her a big present already and am happy to take her out or visit separately. I offered to babysit years ago and have never been taken up on this which I find awkward as it is. I thought about saying I've got a migraine but perhaps I should be honest. I feel like if they made it eg fancy dress and I could be more involved then I'd enjoy it but it won't be like that. Helpful advise/ experiences appreciated.