Marriage

Well I have a fiancée she`s 21 she has a 2 yr old daughter and I`m 28 no kids.. Anyway we got engaged in sept of 09 and right now we`re in a long distance relationship and everything seem fine as of now we get along great and we trust each other no matter what.. But my concern is that I live in Atlanta and she will be moving here in atlanta next month and I`m just worry that maybe I rushed in asking her to marry me cuz she still very young and I just feel like she hasn`t find urself yet.. I guess I`m afraid cuz I know Atlanta has alot to offer and I`m afraid she may change on me she`s very beautiful and I know a lot of guys will try to holla at her and another thing that scares me is that she`s still very curious also.. But the main thing is that I just feel like maybe she`s just marrying me cuz I`m a good looking guy that stays in Atlanta and I have myself together plus I`m an older guy and I guess it`s amazing to her that a guy like me wants to marry her. But what I`m trying to say is what if she comes here and one day she thinks to herself she really don`t want to be married cuz she hasn`t explored other men and really hasn`t had a dating life.. Mannnn I`m just afraid to get hurt I guess...