We are planning on having a big family party on the 26th December in our home. None of us actually like SIL ( my DHs brothers wife). She had an affair a few years ago and we have never forgiven her. I have tolerated her since but last year MIL wasn't getting along with her and blocked her so I took that as my opportunity to not be in touch either . I haven't text her in a year. I seen her yesterday whilst out and about and said hello, didn't stop to engage in conversation. My other SIL and BIL ferl the same as me. Is it really awful not to invite them when everyone else will be there?