WTF...please help..boy trouble...Long?

Ok, so there's this guy that I hang out with in my group of friends. We all hang out because we are all in speech. So whenever I see him, he makes all these ual jokes like he wants to screw me, he loves me, ect.. I'm kind of known as the flirt in the group, but I don't have a boyfriend. I'm kind of the boyish girl in the group. But I definetly don't dress boyish, just act like some of the guys. So, he and I get along great, but he is in a little bit of the popular crowd at school, and I'm just average. He acts different around some people. Like at school he doesn't really flirt with me as much as he does outside of school. But like last night, I had onions for dinner (I know I'm an ***) and he was like your breath smells bad, and he and I kind of banter back and forth. He also sometimes touches me like he like put his arm around me for like 1 minutes last night and was like maging my shoulder, and like always steps on my heels in a joking way. Only 1 person I know says he likes me, because no one knows I like him, and I don't ask.I have no idea if I'm pretty or not, some of my girlfriends say I'm gorgoes, but then again they are friends. Haha so only a couple of guys and like adults and my friends say I'm pretty. He's a but of a flirt too, and it's wierd because right when he and I got tight, his gf and him broke up. I'm like outgoing and so is he. So what do you think, do you think he likes me? By the way we are both in high school. But we are like kind of hot and cold. . And like IDK because he seems to flirt with other girls too. And he always comments on other girls. So..do you think he likes me? And this morning he texted me, but he also texted my other friend. Is he leading me on, or does he like me? People always also say we should date because we are so similar? And today he was talking to me, and he always laughs at my jokes, but he seemed irritated at someone today and told me to like **** off or something but he seemed like he was just kidding because 10 seconds earlier he was whispering in my ear... And I was like get on your knees in a joking way and he did..