How about I don't go to my son's wedding?
Is the relationship between your son and you okay?
I'm not going to it because I don't like my son
Your son seems like they are terrible to deal with and not that kind to you. Is he really that bad?
I hope that he has a terrible wedding and finds out what it feels like to lose someone that you love.
I wish you could change your mind and just go for his sake, he might enjoy you being there and feel happy about it. You could make up for the hard times and be civil again afterwards. Was it really all that bad what he did to make you feel this way?