Hoping for some opinions, really don't know what if anything I am going to do about this.
I have a friend who I've been close to for over a year now, we met through work but started socialising with another friend and our children, going to soft play etc. I feel we are really good friends, we even spent part of our holiday together as we were in the same place. This friend is, let's say opinionated, but also worries if she thinks that something she said has been taken the wrong way, and will always try and sort it out.
Anyway, a few weeks ago we were both going to a concert but had booked separately. We had 6 tickets and she asked if there was a spare one for her daughter. There wasnt but a few days before the event my mum's friend dropped out. So we met my friend and collected her daughter to sit with us. Outside the theatre she handed me a roll of money, which I handed to my mum, and we went in as were on the last minute. The next day my mum says to me "You didn't tell me you had agreed on less than half the price for the ticket." I was as I hadn't, and had no idea that said friend had done this. We had no conversation or agreement about this. Granted it was last minute, but actually I could have sold it for full price 3 times over, had a list of people wanting to come along. My mum has said her friend won't mind, and will accept whatever for it, and obv won't know we could have got more- my mum's point is she doesnt want me to be in an awkward position with my friend. I don't want this either, but don't want to just leave it. So what on earth do I do please?!