What would you do?

There's this amazing guy he has a brother extremely intelligent graduated college was a scientist now works for NASA.

My friend married his oldest brother he is super nice so she introduced me to his youngest brother

The problem is the middle brother the intelligent one is mean rude to me when I first met him were all hanging out and he decided to pick on me and I accidentally knocked down this piece to smoke marijuana out of and I told him he should pick it up so I didn't knock over the weed he called me an idiot

Me & my friend we are a lot alike and she knocked down his piece also and couldn't figure out which way it went because all the swirls the design and he just snatched it and told her it was alright but when I walked by knocked it over he lost it

The youngest brother I really like him we have powerful chemistry

But I've avoided him because him & his brother are best friends always hanging out. If his brother doesn't like me & would be insulting me I don't want to get in the way of family I feel upset

The middle brother is a bachelor he met another scientists he might date idk

But what would you guys do? How do I soften the brother to not be mean and would you date a guy if his brother was rude

Dating advice welcome