<human>: Hi Reddit, I need some advice.

My brother is getting married to his fiancee in July, and I'm a bridesmaid. A while ago his fiancee asked if us bridesmaids could make it to her bachelorette party on the day that happened to be my birthday, and no less in Charleston, South Carolina (we're from NJ). Most of us said no and I thought she and my brother would reschedule their parties to be on some other weekend.

Well, I was wrong. I'm planning for my birthday as it's in 3 weeks and I asked my brother if he could come. He said no because he's having his bachelor's party then and didn't even apologize when I was obviously disappointed.

I'm really upset. I'm his only sibling and he knows my 21st is a big deal to me. It feels like he even forgot it was my birthday or doesn't care that he's missing it. If it were any other birthday, I wouldn't mind, but it's my 21st and he's my fucking brother and my only sibling. What should I do? We're planning something for Mother's Day but frankly I don't really want to see him right now. Should I talk to him about it? Or just deal with it? Our parents are upset with him too and told me not to take it personally because he's bad with planning but I think this is just really rude of him. Am I being selfish?

Can you provide a brief overview of the text?
<bot>: brother won't be around for my birthday because he planned his bachelor party for that weekend, of all the weekends he has before the wedding. Hurt and confused.