Boyfriend forgot important date...

I was performing today, at an event which happens once a year. I asked him Early may, like the 3rd-5th if he wanted to come and he said yes.

Two weeks ago I told him it was on Thursday May 30th, he said he’d be there

I reminded him multiple times over the past two weeks, up uuntil today he said he’d come.

Then, today, he reveals that he hadn’t planned a way to get there and didn’t end up getting a way so he didn’t come. I’m peeved. Do I have a right to be upset?