Girls - What do you think? (bare with me, it's pretty long)?

Ohkiee so there's this guy i like he's a sophomore. I'm gonna be a freshman. So yah, to me, age doesn't matter. ;) But idk how to read him, he's like SOO confusing sometimes. When it was guy's golf season (we both golf at the same place), he would run up to me and hang out when i was by myself. Like he left his friends and came to practice with me. It was pretty cool, then later i followed him where he was practicing, and we were laughing and having a good time. This other time, our class was practicing, but he came up to talk to me, and all. But i mentioned another guy, (just a friend), and he stopped talking to me. At the end of class, my buddy and i were talking about practicing on saturday. My crush was facing my direction, but i think he was talking to my coach, but it was SOO obvious he was looking at me the whole time. So i was like to my buddy "how about saturday?" Then my crush was like "Oh, i'm not doing anything saturday." I was like "I bet you aren't. ;)" STUPID me, i should've asked him to hang out! XP One time, i was like maybe 60 ft away, but i tried to start a convo, and then he just walked up to me, and started talking. Later, i got the nerve to ask him for his number. (Oh, i'm also transferring to his high school) I've texted him before, and he'd usually text back right away (he's sort'of blunt though). Nowadays, he doesn't even reply back. Last time we saw each other, i was around a group of friends and talking. But i noticed he usually doesn't talk/hang out with me when i'm around other people. I told friends i was transferring, one of my friends was like "Did you tell (guy i like) yet?" Then my crush just walked by, and i think he was smiling or something. At the end of class, in our huddle, my crush was like "So janette, are you going to (that highschool)?" (He's told me i should go to his highschool though) But he tried to start a convo with me, because he was walking kind'of close and was like "Being sunburned on the shoulders is the worst. Blah Blah." He ended up standing two people away from my left. But he looked at me when i was talkin to my friends, and was like "what are you guys talking about?" But maintained eye contact with me. Next day, my friend (hangs out with my crush) was like "I bet (crush) is happpy that you're both going to the same school together." I asked him why he'd be happy, and he didn't answer. So a little awkward there, hahahah. So idk, is he just shy or whaaat? Thanks. Should i just stay by myself, to see if he comes up to talk to me? My buddy and i think he's shy though. This week before class i was practicing with my friend at the driving range. He was in a cart with his dad and came by behind me and was like "hey." in sort'of a soft voice. so we started talking, and he told me that he got a permit and a new job. He seemed excited. Later during class i was putting my cover back on my driver, and he obviously made an excuse to come and talk to me. he came sort'a close and was like "so is the new club. blah blah." after class we were all getting on golf carts and he told me that there was a spot next to him. he offered to put my bag in the slot himself. (which i was trying to put in) except my chance was ruined when my coach told me to ride with someone else. XP but later my buddy and i were talking and then my crush was like "bye janette." when i was talking to my buddy. he said by to my buddy too but she could tell he didn't know her name. XP i want to talk to him more, and flirt. but idk how?