Awww...I work with teens and my heart goes out to your DD. I'm sure you will, but please remind her that she is a young woman of good character - she's honest, trustworthy, respectable, caring, kind, considerate, etc. and that she will find the same. Remind her that when it comes to character we attract what we give. So...being the sweet, loving girl that she is will eventually lead to her finding the same in a future mate (a long time from now). I would also have a discussion with her about trust and if she's worried that a guy will lie to her - she needs to take the time to fully get to know him, see him in many different situations and that sort of thing.
It's so sad that she feels let down by her dad. I agree with others, I would open up to her. Don't tell her too much, but don't try to protect her from every detail either.
Take this as an opportunity to talk to her about marriage, relationships, commitment, trust, hope, faith and that sort of thing. She's a smart girl and being honest with her might really teach her a lot and help guide her choices in the future.
I would also have a talk about making sure she doesn't look for love/affection from a bf. I know right now she doesn't really trust guys, but young girls often fall into the trap of looking for love from a bf when things aren't going so good with their dads.
Hugs...and best of luck.
Me: 34 H: 34 DD: 3 M: 8 yrs H moved out Oct. 2008, "not happy" "don't know what I want" "will always love you, but not in love with you" PA Bomb: April 5, 2010