Dad, I feel awful.

Me and that Man had a friend's with benefits situation. We started cuddling, calling each other pet names, were constantly flirting. I confessed to him, that I like him more then A friend a while ago and while he was confused about his feelings first, he agreed that he likes me as well the next day. Well... I haven't seen him for the last two weeks because he was seriously ill. We decided to meet up yesterday and I prepared a Picknick for the two of us. Made a book that basically confessed all my love for him. We made out, then I gave him the book. He said, that he is happy and feels honoured, because noone ever did that for him. Then We cuddled and I confessed, that I loved him. He suddenly wen silent. After realising, what was happening, I started to cry. I had to patiently encourage him to talk about his feelings, because he couldn't sort them out. He then told me, that he never liked me more then a really good friend but thought he could be able to develope feelings. He now sees what a dick move that was. I feel so used and betrayed. I stillwas nice to him and he was eager to learn about what went wrong and willing to change in the future. It was the nicest breakup I ever had. But I'm left here feeling stupid, naive and hurting. I don't know how to cope right now. I wish he would broke up the whole thing when I first confessed, that I like him. But no, he did let me develope more feelings for him. I feel like a giant fool.