Help me please!!

I know im going crazy with the questions tonight... but I have one more. Theres this guy that I realllllly like and we have been off and on since July 1st and hes soooo sweet sometimes and I want to be with him so bad but then he can be such a fucking jerk at the same time. Hes so flirting, and im reallly jealous.. I dont know how to get over my jealousy... when he leaves the room for a minute I go on his MSN and see what girls he talks to, its that bad!!! I need to change but I dont know how!! I want to end it completely, but he was my first and I cant let go of him, even though he treats me REALLY badly I think about the good times and I dont want to leave him becasue I really want the sex... eeek. What should I do!?!?

Ok first of all...sorry to say this, but girl...come on you need to control your jealousy!! I know it may be really hard for you to control being that jealous especially over a guy you really like...but please try, because once you start being this jealous...it gets even harder to control if you keep being like this. To change being this jealous over him....try completely forgetting about this guy and just focus on your own life for now. And yes I know you may think hes soo sweet sometimes...but if hes a "fucking jerk"...then hes definately not worth it. Any guy that treats you like sh*t isn't worth your time girl. Find your self a guy that will treat you like you deserve. Hope I helped!!
Love ya
~Sexyblonde~

sooooorry, but you need to dump this guy, if he treats you badly, it dont matter how you feel about him, because he dont feel much for u.

Sex is not anywhere near a good enough reason to stay with someone who treats you like sh*t. Cut him out of your life and move on to someone better, kiddo.