<human>: Can you give me the gist of the text in a nutshell?

Straight to it. My fiancé got deployed in the fall of 2012. Before doing so he made his mother the power of attorney. During his 9 month deployment she asked him if she could borrow money which accumulated to about 2 grand. He has Facebook messages saying that she would pay him back. Im not sure if in those messages she said a specific date or just a "Ill pay you when you get back" type of thing. 

He's had a series of bad events that called for money and she refuses to pay him anything. Well mostly its his stepdad that refuses to pay him. They haven't paid him a cent since he's been back which has been 6 months. 

On top of the $2k they owe him they also STOLE $1k from a car accident that I got into with another vehicle. I was using my fiancé's car since mine needed work and someone rear-ended me. The insurance company sent his parents a check made to my fiancé and instead of depositing it into his account or giving it to me for me to use for rent they decided to deposit it into THEIR account and not tell either of us that there was even a check sent! They kept blowing me off telling me that the insurance company wasn't answering or calling them back. Finally we told them that we were just going to call ourselves and see whats up. Thats when his stepdad fessed up. 

So in all they owe my fiancé 3 thousand dollars and haven't even tried to pay any of it back in the last 6 months that he's been back. What can we do, about how much would it cost and is it even worth going to court over? What I mean by that is would it benefit us to pay to go to court to get the money or would it be a waste of money, time and effort? Any help is appreciated!
<bot>: Fiancé's mother had power of attorney for his deployment, borrowed $2,000 and later stole $1,000. Refuses to pay any of it back with documentation stating she would. What can we do?