I'm scared I'm leading him on and I don't know what to do?

So one of my guy friends liked me when we first became friends. I became friends with him when I was in a tough spot. I had no best friend (we stopped being friends) me and my boyfriend broke up (I dumped him but it's complicated) and I felt generally alone. I just wanted someone to hang out with and he made me feel accepted. The thing was, he wanted to be all coupley and stuff. I would kind of cuddle with him if we were watching a movie and I would let him put his arm around me even though I felt kind of uncomfortable sometimes because I was afraid if I said anything he would stop being my friend. Also, I think I wanted the feeling of being liked by a guy even though when it came down to it I felt weird about being coupley with a guy that wasn't my ex. I don't think he would do that but I was really paranoid because I had been ditched so many times. I got a best friend though and we stopped hanging out as much. Plus, he was getting kind of obessed with me and it was annoying. Towards the end of the year we hung out again and he told me he didn't like me anymore and he liked someone else. For some reason this hurt me. I felt like I wasn't good enough or something. The summer went by and I was dealing with ex boyfriend drama. At the end of the summer we hung out and this time he didn't make any advances. We hung out for seven hours pretty much and we just talked about everything that had been bugging us. That was one of the best times I had all summer and I didn't feel any pressure from him like I felt before. This time I wasn't offended when he told me why he stopped liking me. He said it was because I was really indecisive and also, he was making it sound like I wasn't smart enough for him? Like we couldn't have discussions about clic books or whatever. He's a genius btw. We hung out for the first time in a while yesterday and it was way different than the last time. I have a strong feeling he likes me again but I don't know why. He also has been acting kind of pervish which is completely unlike him. He is the only teenage boy I know that is geniuely mature. Now, he's all "oh let's cuddle even more than we used too", "we should cuddle in our swimsuits" "you should ' dip' me." (that's kind of a joke we came up with, don't ask), and now he keeps asking to go to my house and he even asked me to homecoming. I felt like I was on the verge of starting to like him because we were all cuddly and he smelled really good. I felt safe and it wasn't like a physical attraction it was emotional, but then he was all "you know if I still liked you, this would be awkward." I was kind of upset by this but my best friend told me that he was probably lying because if he said he liked me it would be weird. Now that I think about it, I think it was complete bull. He's showing every sign in the book that he likes me. The thing is though, I'm so scared to pursue something. I'm scared to like him because I don't think I do like him. Well, it's a big question mark thing. How I feel about him changes. I'm scared I'm leading him on and that if I say anything about how I'm questioning how I feel I'm going to crush him but then again what if he doesn't like me at all and I do start to like him and then I get hurt? Also, one of my really good friends dated him for 7 months in 8th grade (we're in 10th grade now) and that was like her first love. I wouldn't want to do that to her because I know how it feels when your ex persues one of your friends and it hurts. I couldn't do that to her. Plus, I don't want his parents to think I'm suddenly a skank or something because I date him. His parents love me and I don't want to jeopordize it. Also I'm still hung up on my ex even though I have no excuse too. It's not fair because he's pretty everything I want in a guy but I'm not physically attracted to him really. He's not ugly but I don't know. It's not like a spark. Plus, I don't want to date until I feel like it's the right person. I don't want to force myself into anything. My friends all want us to go out though because they think we'd be a cute couple. I'm just sick of the pressure and I don't want to led him on anymore or hurt him or lose him. What do I do? Help? Sorry this was so long btw. thanks!