My wife's birthday is in 2 weeks, she's inviting everyone except my brother I know it's a bit wrong to inviting everyone except one family member but she and her cousin does not want my brother in her party and I don't think I can do anything about that.

My wife loves her sisters and and her cousin sister very much and this request came from her cousin.

The reason why her cousin doesnt want my brother to attend the party is because my brother tried to pursue her, my brother likes my wife's cousin and in every family gathering he tried to get close to her, not in a creepy manner just talking to her and it was obvious to everyone but never in private tho, I clarified that with the cousin.

Our families were okay with that and even wished that they'd marry each other but when he tried once again the cousin still refused reason being my brother leads an unhealthy life.

So now when my wife told me that she doesn't want to invite my brother because her cousin doesn't want him in the party, I tried to convince her by telling her it wont leave a good impression if my own brother is absent in front of our guests and I'll make sure my brother stays away from her cousin.

But my wife still said she doesn't want him in the party and I should talk to him and tell him that he's not invited.

So I went to my brother yesterday and told him everything, he was rightfully angry and he said it's unfair that he's not invited just because he expressed his feelings and he said he won't talk to her at all and wants me to do something about this. I said what does he want me to do if the host doesn't want him invited then there's nothing I can do, he said I should talk to my wife cause she'll listen to me, she always listens to me.

I replied yes she'll listen to me but she'll also get angry at me even if she won't express it, he got angry at me and now he's not even talking to me no matter how much I try to contact him.

Even my parents are a bit angry and mom said she won't come either although that's just her anger speaking I'll bring her to the party anyway, but now I'm also thinking that if I should talk to the cousin. Not sure if she'll listen to me or not but in any case am I the asshole?