No, really. Do what >>2 says. Quit now!
People like this are emotinal vampires. They will ruin you.
This girl does not love you, she doesn not care about you. She just loves to be loved.
You can't help her. She will have to learn for herself. She has to learn to appreciated herself.
As long as she's getting attention and recognition from you, she has no reason to find it for herself.