I'm not going to invite my sister-in-law's scummy boyfriend to christmas
Why do you not want him at Christmas?
I see him as a loser and I don't want him to be part of our family and celebrate christmas with us and all my friends.
Seems a little rough on you. You should try to invite everyone so that they do not feel left out.
Someday I'll regret not doing it. I'm the best one at the family to make things happy and all that shit.
I think that you are making this worse than it is. Just invite him and let others deal with him, you don't have to entertain him, just be polite.