Just before Christmas I had a ticket to go to a concert with 2 ex work colleagues. We were all really looking forward to it. The day before the concert I came down with a heavy cold and on the day I was really unwell with a high temperature. I messaged them both saying really sorry and gutted to miss it. I'd paid for my ticket but didn't have it as my friend had booked them and had held on to them. In the message I said 'if anyone wants the ticket then great. Obviously nothing I can do otherwise'. I thought it was obvious that I meant I ideally wanted to sell it but accepted I'd lost the money if no one wanted it. Anyway I found out today that they had given my ticket away. Just treated a friend to a free night without even mentioning that I might want the money. AIBU to feel seriously mugged off?