Johno - here is the problem - she's 19 and most likely wants to go through her wild-girl stage. You don't provide her with the excitement she needs right now (although you could). I doubt you are much of a challenge for her.
Many Girls between 19 and 25 want to go through that Wild boy/bad boy/jerk stage.
I bet $1 million you were too nice too her, always there for her - too agreeable, always answered the phone, called her way too much, texted(quit the texted), e-mailed.
You're way too safe for her. You're always there.
You need to change a little bit. Take on some wild boy/jerk like tendencies. Be more independent, be busy, NEVER return calls right away, call her occasionally - every day is bad for business, go out with your friends a lot, spend more time at work.
I bet you smothered her? Wanted to be with her too much?
Too much contact is really bad for business - LESS IS MORE - even in marriage you have to be busy AND alwqys go out with friends - always.
Are you in contact with her now?
Please read ALL the articles at:
www.relationships.blog-city.com - about nice guys
www.askmen.com - all the dating articles
www.lovetactics.com - GREAT info and insite as to what is going on. How to win back. Must read for you - read every free article.
You need to change - quit being so nice -learn to tease her, bust her chops, make fun.