<human>: My roommate and I are really good friends and I let her borrow my car to use my parking spot. After my IMA light came on in my car I called her and she admitted to me what happened and that she tried to jump the car and thought it would work fine. She said she would feel bad if I had to buy a new battery. I read online sometimes the battery can go up to 1-3 thousand dollars (I have not called yet, just looking at online sources). I think its reasonable that I charge her the full price, but I don't want to ruin my relationship with her

Can you summarize the given text in a few sentences?
<bot>: Roommate used my car, ruined the battery. I am assuming cost is 1-3 thousand dollars. Not sure what to do.