Cohabitation

I recently broke up with a girlfriend of about a year and a half. She is refusing to give back some of my property, saying it is 'payment' for letting me stay there a year. It was bought while we were together but entirely on my credit card. Does she have a legal right to my property? I live in Oklahoma if it matters.

What is the legal definition of rent? I'm going through a divorce. I took in a housemate who is also going through a divorce. She helps with utilities and my mortgage. She does not pay me any money directly. There is no rental agreement, written or oral. My ex is claiming this is rent in order to increase support. Is this legally rent? Her attorney claims that the term rent means anything of value paid to you or to someone else in exchange for living arrangements.

What rights and/or compensation could a party be awarded in a common law union of 3 years that ended by one of the parties. Is there any financial responsibility on the part of the one who finished it? After giving up a very desirable job and home, I moved to a different county and now must return to begin anew, as well as look for a new dwelling. Moving expenses? New dwelling, etc?

My girlfriend and I broke up and she moved out. Her name is on the lease and she is refusing to give back her key to the house. She moved a month ago and still has property in the house. What can I do with her stuff and how can I get my key back?

I cohabitated with a woman in her home for 8 years and vested over $50,000.00 in home improvements, asphalt driveways, pole barns, interior improvements, attached garage with finished loft etc. Plus made mortgage payments for six 1/2 years. Can I recoup any of these costs?