My girlfriend cheated should I give her a second chances

YES! How do you feel about that?
NO! How do you feel about that?

No one can tell you what to do, but if you want to tell the whole story, maybe people have some advice based on more info.

We started dating in May. The first time we had sex I did not finished. After a while This came a problem. So she had sex with her ex. I didn't know. After a while I started to finished. She went to New York her dad gave her a $1000. She back from New York with litte cousin tae. She was looking for a job. She bump into a dude she knew from 2010. He offer her $250 for sex she took it called me 1 day crying tell me everything.

She sounds shallow and fickle. How much does she want you back, and if she says a lot, how much do you believe it?
You both sound very young. How old are you?

We started dating in May. The first time we had sex I did not finished. After a while This came a problem. So she had sex with her ex. I didn't know. After a while I started to finished. She went to New York her dad gave her a $1000. She back from New York with litte cousin tae. She was looking for a job. She bump into a dude she knew from 2010. He offer her $250 for sex she took it called me 1 day crying tell me everything. She been begging me for a second chance over 3 months. Should I give her a second chance?

Im 23 she is 22

Im sorry her dad gave her $1000 for a car.