What's the next step?

So there's a boy at my school who graduated this year and is joining the guard at the end of summer. He told me he really likes me and I've liked him for a while. We don't really want ppl to know we like eachother though cuz I can't date til I'm 16. Last night he came over to my house at night and we sat on the porch of the abondoned house next door cuz nooone can see it unless they walk along the sidewalk to the front of the house. He held my hand for a while and put my head on his shoulder and played with my other hand. He put his arms around me and tickled me until I fell down. Then he wrappped his arms around me and we stayed out till midnight just holding hands and cuddling and watchiing a big storm together. The house always freaks me out bc I'm afraid ppl break in there aand have lived in there for a while, plus with the storm going on I was afraid someone was gonna just pop out from inside and kill us. I told him this wen it got really quiet and then he told he'd never let anyone hurt me and that he would die to save me. Then he started to lean in to kiss me but I turned away. I've never had my first kiss and I panicked. I wanted/ want to kiss him, but at the same time id feel guilty if I did. When I was little I set a goal for myself that I wouldn't kiss until my wedding day, that way id only have ever kissed one person and it would mean a lot. I don't think that's gonna happen, but still. I don't think I'm ready to kiss him bbut at the same time I want to a lot. Also, since he's mving away at the end of summer I'm afraiid ill never get to see him again. What should I do next?