Is it rude not to invite my sister's boyfriend?

You dont, you invite him.

Umm. I really think you should let him come. She would probably be upset with you if you said no and that's going to cause endless amounts of drama

You really need to invite him....it sounds like that's going to be tough but you're going to cause a lot of strife and drama if you don't. I recommend inviting him and hoping he won't show, and if he does just make the best of it. Talk to your sister and let her know that if he acts out of line he will be removed from the premises.

You can't. Don't be selfish. If he doesn't like you either maybe he won't come but you do need to invite him.

Yeah, without knowing details, like he murdered someone or something, you should invite him.

Unfortunately you should invite him. It would be no different than if you and your FH were to attend a wedding a he wasn't invited. You won't have to worry about him the entire day as you will have so many other guests who love you. Your sister deserves to have a plus one. Hopefully he won't come.

Goodluck.

Sorry you don't get to decide who your sister procreates with. Even if you don't like him there is no way to invite her without him.

Yes, it's rude not to invite him. ETA: I'd address the invite to Sister and Guest though, cause I'm a bitch like that.

He needs to be invited, unless he's a harm to himself or others. It's your sisters S/O and they have a kid together. My sister is not in a relationship, but she's getting a plus one because she's my sister and she deserves to have someone with her at my wedding.

I understand how you may feel, but he is a part of your family whether you like him or not. Sorry. We all have relatives we dislike. In this case, since it's such a close relative (your sister), it would be more drama than it's worth to not invite the guy.

To go into more details he has spewed profanities at my mother, as well as personally insulting her, and made lewd comments about my brother's stepdaughter.

Invite him, but have someone lined up as a bouncer.

If the person in question was a cousin or something it'd be different, but since it's your sister, you have to give her a plus one.

However, you could possibly talk to your sister about what he said to your mom and step-niece. You should also give a heads-up about him to some people (I don't know if having a security person is a thing where you are) who will handle out of control situations.

You have to weigh the pros & cons.

Pros of not inviting him:

you dont have to see him

you dont have to worry about his temper

Cons of not inviting him:

your sister will be pissed

your sister might not come

he might show up anyways

he will be pissed and probly be spewing profanities at you

I dont like bullies (sounds like he is one). But I also dont like adding excess drama. I would invite him but maybe talk to your sister about your concerns.

You kinda have to .......sorry.

But he is not a reflection on you; he's a reflection on her. Andy if he is really that awful, maybe he'll be gone by then.

Talk to your sister. Let her help you decide. Sometimes it is better to ignore (not include) a bully/abuser. Some extreme personalities create drama (trauma) whether invited or not, so sometimes it's better to create distance. I knew someone who did not invite their father to their wedding because of his abusive behavior with women in the family. Boundaries are sometimes important. You know the details, and only you can know how to best protect yourself--and you have every right to.

Have an adult only wedding and he'll to stay home, to take care of their daughter.

Maybe talk to your sister and she how she feels when you tell her because you don't want your sister to not want to come because you won't allow him so maybe see where you can get with talking to her. It's your big day and your decision but remember family is so important

I personally say its your wedding do what you want. I told my mom her boyfriend wasn't invited and she understood. So i i think she'll understand ultimately the decision is yours. Good luck

U don't have to but I may cause some issues between u and your sister. U need to figure out what is most important to tou