Previous Relationships - She Just Can't Move On....why?

So, my fiance's ex wife...what can I say: Is not the sharpest tool in the box. They have been divorced for 7 months but seperated for 2 years...they have one child together. She lives in another state than we do and I have never had the chance to meet or see her personally. But everyday, she send my fiance either text messages or email messages saying things such as,"If he marries me he won't be able to see his child" or "What does she have that I don't" or even stuff saying that she's moving on and for him not to stop her....UHH HELLO...but last night was weird...somehow or another at 9:32pm I recieved a text message from a 602 area code...I have no idea who this person is but I am sure it was her, telling me that I am being immature....WHAT IS SHE TALKING ABOUT? Seriously, i need some advice, this chick is driving me crazy....how would she get my number?

I'm not sure how long since you had this problem, but you know that 602 area code is Phoenix AZ, right.

First, your FH needs to get a court order for visitation rights. This way, she can't prevent him from seeing his children. The next thing you need to do, is respect her. I know she is driving you crazy, but they have children together and she will be part of your life for the rest of your life. You have to take the high road. No name calling and encourage him to talk and see her with the children. I am speaking from experience. The less you interfer with that relationship, the more she will back off. Her fear is that you will try to prevent him from continuing his duties as a father. You must always put the kids needs above your own. If you do that, it will make things a lot easier. It won't happen over night, but given time, you will see that I am right. I have gone through this. Once my husband's ex saw that I wasn't interferring in their relationship, we started to become friends.

I agree. Ex's are a part of your fiance's life. Your best move is to simple force yourself to 'be okay' with it all... as tough as that might be, fretting and making a stink isn't going to make her go away.