to be very upset with my brother

[locotitis]

My brother has been sleeping with several married women and I feel really annoyed at/with him. My exH cheated on me and he saw how much it hurt me and yet he's inflicted the same suffering on other people. AIBU to be upset with him

I can understand why your upset (I have been cheated on too) but imo if these married women are offering it, he is gonna take it. Perhaps he just wants to have some fun knowing they cannot commit if that makes sense.

At the end of the day it's the women that are married not him although I do NOT condone his behaviour in any way. If anything these women need a kick up the arse but that's jmo :)

YANBU to be annoyed by his actions but I don't think there is a lot you can do to change his behaviour. Remember the women he is sleeping with are consenting adults. Not right IMO but they are as much to blame as he is for any marriage breakups/ pain along the way b

I would try and wait until I had calmed down, then talk to him about what it was like to be on the recording end of his behaviour.

I'm not sure I could achieve the level of calmness required to be able to deal with this without appearing a mad/crazy woman, but try.

He will no doubt get his come-uppance when one of their husbands catches up with him.

How old is he?

He's only 22

YABU its between him, the women and their husbands it has no relevance to you whatsoever.

YABU whats it got to with you?

YANBU tell him to stop being a slut

YANBU if it were my brother I'd go ballistic and make his life a misery until he stopped. I hate homewreckers

YABU - his choice, his life. OTOH, YANBU because of your past experiences.
I don't think it is your business though.