Love Scared

I'm utterly terrified, how can this be happening to me? I went from having no one to having someone that would give their life away in an instant for me. I don't know how to react I've always been so terrified of love. Everyone I've ever loved has betrayed me. I'm scared that if I put my trust in this person, then it will backfire and I will be back where I started in a pool of depression on the pavement in a back alley.