No matter what, the boyfriend should have gone . That day is about being there for your girlfriend and supporting her through hard times. Not about how you feel or what you're worried about. It's both selfish and inconsiderate of him not to go for any reason.

Maybe they've only been dating for a week. Maybe he wants to break up with her, but not be the bad guy, so he's giving her a reason to do it. Maybe he's cheating on her and not actually working.

I understand what you're saying, and the boyfriend may have had a reason (I assume it's because he doesn't like funerals and death etc) however, it's not about how he feels. The point of being in a relationship is to be there for someone else and to "share" a life with them. He should've stepped up and put his girlfriend's needs before his own. Even if he was really upset the father died or has a hard time dealing with death and funerals, imagine how much harder it would've been for his girlfriend. I would have a serious talk with him op and make him explain his real reason, then explain how much it hurt that he wasn't there when you needed him and if the relationship is going to work then he has to change.

Some people can't just leave work at the drop of a hat.

OP's boyfriend chooses his own working hours, so in this instance he could spare a couple hours to be present at the funeral to support his girlfriend. Funerals are usually made a couple days to a week after the death. He could have rearranged any important tasks around the time of the funeral. It's all about priorities. He chose work over his girlfriend.

Plus even if he still had work to do that day he could've gone to just the funeral and reception and not gone to the burial or something. That's like an hour and a half 2 at the max.

Who likes the vibe at funerals?!? This is about supporting the OP while OP deals with all the emotions from losing a parent.