I have a relative I was always close with, we had a lovely time over the summer and we were meant to celebrate an occasion together a few weeks ago but due to some things going not to plan, jetlag and exhaustion, I didn't give the occasion much thought and at the last minute I made a plan. However the relative got really mad with me, and told me to f off and I have ruined everything. In a way, I did mess up because I was disorganised from my end but I got mad at the texts I received so didn't bother. But now I feel super guilty and I am not sure what the next step is... Any suggestions or advice welcome!