You have an interesting view of marriage. I never felt I had to do anything in particular being married, nor did I feel like my time wasn't my own. I didn't do things for and with him out of obligation. I did them because I wanted to do them. I CHOSE to love him, and from that choice I made many other choices, like being faithful, wanting to do things with him often, wanting to do things for him to show him Love, wanting a family. The other things, normal life stuff, wanting a nice, clean house, a nice yard, clean clothes and so on, weren't because he expected anything. They were because I expected them. I want to live in a clean house, so I clean my house, I want to wear clean clothes, so I do my laundry, and while I am doing my laundry I did some of his also (it saves money to do full loads of laundry instead of partial loads). However, as a grown adult, he also did these things, and others to show me love. He wasn't my jailer, we were teammates. He wanted a nice house, so he cleaned, he wanted a nice yard, so he landscaped and he wanted clean clothes, so he did laundry. Neither of us did these things because we felt we should do them to please the other? We did these things because we wanted to be good stewards of what God gave us. We did them to please God, not each other.
Perhaps instead of claiming marriage was what caused your prison, maybe it was the person/people you've chosen in your life?
Oh well not my circus not my monkey. I don't need the answers to your life choices.