Girlfriend is indecisive and driving me INSANE?

[amtrak]

So, my 18 year old girlfriend whom I am in college with (I'm 19) is just killin me right now.
We are both Mormon, and her ex-boyfriend of 2 years just went on his mission.
If you don't know what that is, it's basically those annoying people who knock on your door
I'm not going, but he was not "worthy" of being on his mission because he had sex with her less then a year ago. When the people on his mission found out about that, he was removed from the mission and was just sent home after 2 months.
We've been together for only about 6 weeks now, and they broke up about 4 or so months ago.

This girl is a total emotional wreck a LOT of the time.
She is always under a lot of stress with school, etc. too.

So basically, he just got back last night and now (as in the past) because she did have a lot of feelings for this guy before she cheated on him--I always tell her that if she loves him then just tell me but don't keep me hanging on a string because it drives me NUTS.

Now, ever since he is back in town she is different, and wont talk to me much, and it's just driving me insane.

I really want to break up with her, but she dropped the "L" bomb a few weeks and the whole relationship overall went very quickly.

We have barely talked all day since last night, and I really just don't know what to do.
I did try to break up with her before, and she really didn't want to.
She's driving me nuts.

[girl68]

When you're truely happy in a relationship your girl wouldn't be driving you "nuts" or "insane".

You already know what to do. Find a girl who doesn't make your ass crazy. Your friends will appricate it too.

[Sanctuary]

Your gf is a crazy bitch - leave her.

A better girl will come along no problem.

[Sonrisa]

what relationship? they been together for 6 weeks. did she sleep with you?