My brother is getting married soon, and I've always got on well with his fiancee. However recently she's been a bit quiet and a bit off so I asked db what was wrong.
She's a bit upset that nobody has offered to pay for her for her hen do.
It's not expensive, we're only going to a theatre show so I (or any of the rest of us tbh) didn't even consider offering to pay towards her. If we did all pay for her share it would only actually cost us an extra £3 each, so I feel half embarrassed at not offering and half annoyed that she would expect us to because it will hardly break the bank for her to pay £30 herself.
So I asked db why she thought we would offer, and it's because whenever we go out for a meal for an important family birthday we always pay for the person who's birthday it is so they don't have to pay for themselves. Sil2b has been to a meal for my 30th and my younger sisters 21st, and the bill has been split between everyone so the person who's birthday it is didn't pay. This is a long standing thing in our family.
Db said because of this and us not offering to pay for the hen do she now thinks we don't see her as part of the family. I was a bit 
because she's very definitely part of the family and I see her as a sister not sil.
So I now feel a bit awful for not offering. Wibu to not suggest the hens pay for the b2b or is she a cf for thinking we would?