I did a stupid thing about 2 years ago. One of my best friends was going through a life crisis and she needed help purchasing a car. (Her own credit score was bad because an old car dealership screwed her over.) So, she asked me to co-sign on her new car purchase. I don't know how I could be so stupid as to agree to it back then, but I did, thinking I was helping out a friend who was in dire need.

Long story short, she was late three times on her payments and of course my credit score has been affected. I've had to pay for her twice so that my credit score would be protected. She has her life back together now and she hasn't been late in a while but it's still something always on my mind.

Would it be better for her to continue to keep the car and make timely payments to improve my credit score? Or should I ask her to sell the car?