My girlfriend has a history of cheating...what do I do?

Anonymous
My girlfriend bravely admitted to me that she has a history of cheating on the guys she dates, but that she doesn't want to ruin things with me. Everyone tells me to be careful, but I see an entirely different side to her, as she expresses her strong feelings for me that she hasn't felt for anyone else before. She's honest about everything and wants me to know her past flaws so that she won't repeat them. She has shown me time and time again how much she cares about me, but still a lot of people tell me to be careful. How do I come across this?
My girlfriend has a history of cheating...what do I do?
5 Opinion