GM, I'm glad that the temporary support order has now been settled and he paid you what you were owed. Something must have clicked for him to finally work with you.
No, it isn't always worth the fight for settlement because most people would prefer to have the spouse reconcile and continue living out their days together. I'm sorry it doesn't feel right, but I do understand. No one knows what the future holds and maybe, just maybe, some day he'll wake up and realize what he's done and want to reconcile. But, that is far into the future and God may have other plans for you and your sons.
For now, travel safely and enjoy your time away. You've earned a bit of down time to enjoy yourself.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.