There's a back story, but I think even without it I would still think he's self-centred. Here goes...
BIL (DH's brother) is in his mid-30s and every year for the last 10+ years for his birthday he would have a large birthday party at a swanky (expensive) place, usually with a minimum spend per person. He also required presents from us and his other immediate family members.
E.g. the last 2 that I've been to have been in central London bars, where he's hired out a large room or the rooftop. The minimum spend would be £30-40 pp.
However I was v ill during my pregnancy last year and didn't go to his birthday do. He was unhappy and wanted DH to come alone. DH refused as he wanted to look after me and be home in case something happened. In addition, the venue BIL chose was an hour+ drive away, and DH didn't want to drive all that way for "a can of coke" (as in no drinking).
This year with a new baby, a large mortgage and me on maternity leave (v little income) we can't afford to go nor do we want to go and leave the baby. Of course BIL isn't happy, but expects us to make it up to him with a more extravagent present. I'm expecting him to kick off again when he finds out we can't afford the extravagent present either.
AIBU in thinking he's just very self-centred? Surely a grown man doesn't need his brother to come to every birthday party?