I was him. Not to that degree, but I kept thinking, "If only it were this way..." or "...he were that way." I thought I wanted to be free. I've kinda grown up in the last year. I see what I have and I appreciate it. I adore it, our relationship and my DH. Still have our issues, everyone does, but I realize there is no such thing as a Prince Charming.
I have no real advice for you, just (((((((HUGS)))))))) and you are in my thoughts and prayers. Hopefully, he will come around and see what he's walking away from. As an adult, you just dont always get that free time with buddies, or the luxury of walking away everytime something bothers you.

I hope things work out for you. I'm sorry you're going through this.

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Not all those that wander are lost.