Am I wrong for being bothered by this?

I’ll try to keep this brief. I have a coworker who’s a morbidly obese lesbian addicted to K-pop and Harry Stiles. Several months back she was in a car wreck with a drunk driver, but it was her fault since she was nosed out into traffic when he hit her. She broke her arm pretty badly so she was out of work for at least a month, came back for a couple days but apparently had an incident where she got stuck on the toilet and peed on herself so she was gone another month and a half.

Since it was her fault she had to pay for damages, plus she missed all that work time so we took up a collection at work and then somebody started a gofundme for her that raised like 2 grand. Nice little story about people coming together right?

Well she came back to work Friday because she finally got her cast off and we were talking about what had been going on since she had been away from the office and one of the things she mentioned was going to the Billboard Music Awards to see her favorite K-pop band and said it was the best $420 she ever spent.

If I had known I was contributing to her concert ticket fund I never would’ve given her anything. Is this one of those cases where it’s her money now and she can do whatever she wants with it or Would you also be pissed that this money we all figured was going to bills went to watch a Korean boy band?