Me and my friend had planned a fancy spa day out which we have planned for around 6 weeks now. She then told me the day before her in-laws were visiting which she had only known for that day which is the day before our spa day. I feel very upset over this but I’m also not a confrontational person and do not like standing up for myself so I just told her it’s no stress and we can plan it for another day. But then when I tried cancelling, it was too late and it has cost me £200 to book. I do not know what to do about this as it is a lot of money but I can’t also be mad at her for a last minute plan. AIBU?