Guilty?

Monica
So my moms been dating this guy and it's an off again on again thing. I never liked him to begin with and I think my mom deserves so much better. He's rude and obnoxious and I just can't stand to be around him. Anyways, they recently broke up...again, and I just found out she might have him around before the holidays. Now, last year this guy RUINED Christmas..to the point where neither I nor my siblings want to attend the holidays at my moms house. This is going to be my sons very first Christmas and it's very important to me it'd be the best one by far. I've already discussed with my sister that if he does return by Christmas, that I'd have no choice but to host my own. The only problem is I know this will break my moms heart, not having her new grandson around, but am I left with a choice? I don't want to feel guilty but then again I don't want him ruining my sons very first Christmas. My husband agrees. I've brought this up to my mother and it seems as if she doesn't care I'm not there or she thinks I'll be there regardless and she's not taking me seriously.