Guys, has a girl that tried to make you jealous backfired?

If so, how did it backfire for her? I want to hear some experiences you guys have went through, what happened, and what was the aftermath.

After finding out a girl, who I'm crushing on at work, has a boyfriend, I told her that I didn't want to cross any boundaries and stopped talking to her. I've noticed that she tries to make me jealous when her boyfriend is around. So I've decided to move on and let things play out.

Guys, has a girl that tried to make you jealous backfired?
Post Opinion