Do I have a right to be so upset??

So today is my college graduation, my boyfriend wasn’t going to be able to leave work early as of the other day to come and I completely understood why so I didn’t expect him to come. But now he was able to get out of work early and we ended up getting into an argument about money so now because he has an attitude he’s not going. I am seriously so upset yes it’s only my associates degree and it’s not that big of a deal but to me it is because I’m the first in my family to receive any type of degree and I busted my ass so hard the past 4years to get this. I wasn’t going to go at first but then I decided to go and he keeps saying I didn’t even want to go in the first place so he doesn’t know why I’m so upset. But I wanted him there to show me support and to see me do something that I’ve worked so hard for. But no he’s being a selfish prick and refuses to go because he’s in a bad mood and doesn’t want to ruin the “vibe”.