Should I break up with my boyfriend for this other guy?

so I just moved to Tennesse from Michigan. I just starrted my new school as a freshman. Well as soon as I saw this one dude named " JonScott" I was like WOW. He is everything in a dude that I would want and he is pretty HAWT. Well I didn't honestly think he could everr like me. Well this other guy who is kinda cute named Jack asked me out and I said yes. But I still secretly still crushing on JonScott.Well me and Jack broke up and JonScott started dating this other girl named Jessica. Of course I was dissapointed and so I got tired of waitintg on JonScott so I went back out with Jack.Well not even a week later we were just talking as friends and he came out and said he liked me. but that he had a girlfriend at the moment. *tear*. So I am staying with Jack for now. Well then Jack told me that he heard from one of his friends that JonScott said I was hot. Man was I so excited. But if I brake up with Jack again he will never take me back. BUt how do I know for sure JonScott is acutally intereseted in me and how long will he stay with his current girlfriend? Also his current girlfriend said that I wasn't allowed to talk to Jonscott and she honestly hates my guts and I honestly don't no why and she said to me " You really need to quit talking to JonScott because he is mine" But its not like I made a move on him or soemthing. Me and JonScott have everyhting in common and it seems his girlfriend and him don't have nothing in common. And me and my current boyfriend, well he is cute but me and him having nothing in common. I feel so bad for going out with someone when I like someone else and also when me and Jack walk by JonScott I feel guilty and me and JonScott just look at eachother. Cause I really wan't to be with JonScott not Jack. WHAT SHOULD I DO? know if I tell JonScott I like him then his girlfriend will get pissed and threaten to beat me.! lol

yeah someone should answer the damn question

You know what I think? You shouldn't have a boyfriend. You should break up with Jack and leave JonScott alone. I do think JonScott's girlfriend is rather childish and possessive, but then so are you. First of all, you should never go after someone who is not single. JonScott has a girlfriend. What part of that don't you understand? You really want to be with him? Yeah, well. You don't always get what you want. Deal.

you know im having the same problem and I decided that it was too stress full so I broke up with my girlfriend and now im just waiting for the other girl it honestly feels better

jack may never take you back but you dont seem too happy anyway so im not sure that it would be that bad

and finally if it turns out you never get to go out with jonscott at least your available so that when the next jonscott comes you wont be in this situation