Exactly, I'd rather my kid only see me on weekends than to grow up thinking it's okay for them to be in a marriage like that.

>I don’t want him to grow up without both parents being present

Divorce doesn't mean he loses a parent and even if it did he'd grow up a lot happier with one parent who loved him rather than in a home where one of his parents is actively disgusted by the other.

It's important to do what's good for your son but doing it at the detriment of yourself will hurt him in the long run.