My guy friend and I hooked up once and I thought nothing of it until I found out he had a gf. That was December and now he asked to hook up aagain. The thing is that I was crushed when his friend told me about his gf cuz I really liked him and still do. I am scared of heartbreak. What do I do? I want the hook up to last and turn into a relationship but I'm scraed he will let me fall again. Help?