AITA if I tell my boyfriend (22) I’m mad at him for not hearing from him for over three hours while he’s at a party?

I (f20) and my bf (m22) have been together just about two years.

Today, at around three pm he told me he was invited to a party for those who help run the club he is apart of and also runs. That’s fine. I was a little upset because every week on this day I go to his house after work and he cooks me dinner and we watch a tv show or movie. While this was breaking our usual plans that happened like clockwork, he said he’d still come over to see me at my house after the party.

I got off work at around 845, and called him to say hi etc. he was just leaving. At about 1130 I messaged him to see when he would come to see me, as I had things to do. He said he would stay until 12 or 1. It is now 230 am, I haven’t heard from him in three hours.

Wibta if when I finally hear from him, I’m angry?

TLDR: my bf changed plans and then I didn’t hear from him for over three hours