Let's not forget that you are doing it to a girl that already has a SO. What goes around, comes around
I expect that any attractive woman that interfaces with the public a lot will have guys pursuing them. Ffs. my sister had so many guys ask her out while working the counter/drive through at Tim Hortons. They know her work schedule and make a point of going and talking to her. One of those bastards that flirted with her was wayne gretzky - he was in town for a golf tourny. And she got offered a job at the golf course too. (
Golf Course - Glen Arbour Golf Course )
If you are a good enough guy, and she's worth it, she will do the mental math to decide if giving you up is worth it. I don't get jealous in relationships because I just want to be the better option in all cases