Do I have any legal recourse?

Are you saying it was just a verbal agreement? I don't know what legal rights you have (if any). Can you elaborate a little more?

Relationship gets sour when money comes in between. Unfortunately, you can't do anything unless you have something in writing.

Verbal contracts can hold up, as long as you have proof that you gave her money. I loaned a friend $1500 about 4 years ago, she promised to pay it back in 3 weeks. I wrote a check out to her to evidence it.

When she never paid, I took it to small claims court and got a judgment. Then I sent in a garnishment order, and got paid through her employer.

DebtCruncher is right. A verbal agreement is just as valid as a written one. It falls under contract law and the enforceability of such an agreement is in the performance of the contract.