Hope, Yes. Give up. Let go. Move forward. Don't give up for your marriage. But there's nothing wrong with letting him know you CAN live without him. It sounds to me like you need to tell him "You're right. Friday, if you don't want to come over for dinner don't." If your interactions on Friday nights are so crappy, why do you want to do it? For the record, you're stressed too. You can't keep juggling everyone's feelings. You have to work on yours first. When you're stable, being stable isn't so hard...get it?
Just calm down. This is a long hard process.
When something isn't working, stop it. Try something new.
