Hey man, sorry to hear about what you went through. Girls have that maternal instinct. When you find a woman who really cares about you, she'll want to take care of you. Finding that woman is the trick though. Don't think telling a woman about your life right off the bat is going to make her fall in love with you. Instead, turn all of that negative energy from your past into something positive. Maybe treat her just the opposite of how you were treated.
I hope everything works out for you...
"So tonight, when you're wondering what to say, or how you look, or whether or not she likes you, just remember, she is already out with you. That means she said yes when she could have said no. That means she made a plan when she could have just blown you off. So that means it is no longer your job to try to make her like you. It is your job not to mess it up."
-Hitch