Background: DD has a schoolfriend who she has known for about 18 years. Used to be close when they lived in the same city but DD moved away to uni 10 years ago and has stayed in that area. DD makes arrangements to see friend when she is home but friend invariably cancels, usually at the last minute. DD got engaged just before Christmas and we had a small celebration to which friend and her fiancé were invited. They were no shows on the night.
Friend’s wedding is this summer which DD has known about for a while, but she was not invited to the recent hen weekend. Wedding invite has now arrived - would DD be unreasonable to decline?