I was invited to a friend's hen party last year however she was yet to set the date. I work in a job which requires me to book time off a long time in advance and also work shifts including weekends/nights so she asked me for a list of weekends I was off in the early summer this year as she wanted to make sure I could come. Subsequently she's announced the date, it's a weekend I'm working the whole weekend so I tried to book it as leave but it was refused. When I told her (in as nice a way as possible) I said that I couldn't get the leave but might be able to get someone to swap for one of the days so I could come for one day but unlikely to get both on a weekend. She replied saying if I couldn't come to it all don't bother and if I cared about her I would make sure I got the leave etc etc including telling other people that I obviously wasn't bothered about her hen weekend. I tried to show interest and ask about what she's planning and where they've booked to stay etc but she said if I'm not coming it's none of my business. It turns out now someone has cancelled the dates so I could go for the whole weekend but her attitude makes me reluctant to go now! So wibu just not to not tell her and not to go?