What do I do about this situation?

A few weeks back, me and my fiance were still together, and things were great. we fought sometimes, but what couple doesn't?

Then I found a few disturbing text messages on her phone. The messages were half deleted so I did some research of my own, a.k.a acted like I was her and texted this other guy.

I asked things like what did you say, and what were we talking about earlier.

shortly after I got a reply.

it said we were talking about how bad do you want your system in your car, and she had said to him how bad do you want that picture?

in the past I asked her not to talk to this guy and she refused because that was her friend, and she wasnt goin to stop. so I trusted her. until the above stated hapened.

so automatically I assumed that him and her were "talking". and so me being me I kept my mouth shut, and just didnt say anything or act like anything.

later that night a girl I just met from my new job at schlotzskys texted me, and told me she thought I was cute and what not, and that she wanted to take a nap with me on friday.

i did all this because hey what the hell ya know? she did it to me and it hurt me. but she didnt care.

the next day I find out that the messages on her phone were intended for her best friend, or at least thats what she says, and that it was her best friend talking to him and not her.

but by that time it was too late and she had already seen the messages I wrote to the other girl. I only did it because she made me mad, and it hurt me.

now we havent been together, and I miss her, and she says that she isnt sure if we will ever be together, she blocked my number because I call too much, she is starting to hate me. sometimes when we are alone she tells me she loves me and kisses me.

but now we arent even talking. what do I do? I want her back more than anything. this whole thing was just a big misunderstanding.

Don't think I'd call it a "big misunderstanding."

What you should do now is take an realistic look at what's really going on. There is something basically wrong with your relationship if you have to do investigative tricks to find out what she's doing and you consider a text message on her phone justification for "taking a nap" with someone else.

Nothing will destroy a relationship as quickly as dishonesty. Until the two of you learn to communicate and clearly understand what "commitment" means, she's probably right about not being together again.