Another WW

[Last79]

So now my father in law said he would like me to come over for Christmas Eve if I don't have anywhere to go, which I don't since I haven't told many what's going on in our relationship. My wife said I don't care if you go if you want to. I know my kids would love for me to be there so I am torn. Give her the best of both worlds or go for this kids sake. It doesn't bother me to go there cause it's just her immediate family. They know we are not getting along but don't know about her affair.
I have been great until she told me this. I think it's because her dad was reaching out and cared about me on Christmas. Now I just feel sad and confused and it's Christmas Eve.
Anyone have experience or thoughts if I should just suck it up and go?