you sound like a good guy with good goals, great head on his shoulders and even willing to give numerous second chances. Thing is a girl cheats and gets away with it she thinks she can do it again, girl robs your ass and its ok, she thinks she can do it again....... girl lies to you, goes and does shit behind your back, she thinks she can do it again.

This girl is not giving you the respect you deserve bro. Its plain and simple to see, she is using immature tactics like ****ing co-workers to get back at you. That is retarded!!!!!!

Do your self a huge favor, get the money back and let her go. Because when that happens she will be 22 and its clear you want a 21 year old lol......

Best of Luck bro!