dillema...

What do you do when your fresh out of a relationship, well a month or so out, of a 3 year relationship and your really into someone who at times is really into you but at other times seems distant? The girl in question has an ex whom she is trying to be friends with but is still in love with. I know I should give it up and let it go but I really like her. I'm so torn between just telling her that we cam only be friends and just completely cutting her off. I want her. In the worste way but I find myself falling hard. Oh the dilemmas I put myself in.