Guys !!! I want to ask one question. What is your feeling when you liked someone ? I meant how to prove that we like that someone ?

Today, i walked with my school from school. So, we walked our way in front of primary school. I saw my ex-crush take his little sister from school. I'm not sure if it was him or not since i have sight problem and that time i don't wear my specs (only wear when study). I look at him and he ALSO look at me. And there my heart goes dugeun deuguen. So, i'm confuse whether i still like him or not. We stop talked after he got a girfriend :( I'm just a junior that time and he was senior so yeah. Oh, also ! There was this one time last year, when he still school i walked to toilet alone. And accidently met him. We stared to each other before i walked away. But seriously mann my hear goes dugeun degeun. Is that the feeling when we liked someone ?

But i'm confuse to him seriously. Last year, i loved to see people skateboarding. He also skateboard. One of reason i liked him ? Lol no. Tbh i start take interest with these skateboarding thing bc of him. Soooo, one day i watched them skateboarding and accidently one of his friend skateboard hit my shin. It's not really hurt. His friend apologize to me but i just say its okay. When i walked back to home with my friend, she say his friend(whose skateboard hit me) alsoapologize to my ex-crush when i rbbed my shin. I just feel weird. Why would he apologize to him when im the one hurted one.

We always chat at facebook. I become friend with him bc we in same situation. His friend, he and me kind of make fun one of our sophmore lmao. I scared since that sophomore threat to tell abt it to discipline teacher. I send a message to him and we start become closer. Usually we would exchange chocolate at school. I also sometimes treat him bubble tea. Before sports day, he ask me to buy kitkat (go googled it if u dont know what kind of choclate is it) for him. I just say okay. He also say he want to share it to me. But i dont take serious abt it and just ignored it. So, during Sports Day i give himand that chocolate. And guess what ? He say in front of his gang >///<  'Hey ! I say it already. I want to share this with you' I panicked like ed ! All his gang have michious smirk. Damn. More embarrassed is, my clique also at there just behind me with my classmate. Not to forget to mention too, one of my classmate(boy) who're always tease about me and him lhaflsdaklsahld. I rejected it his offer and walked back to my friend. I never know that was our las interaction. The next day i  stalked his twitter and he tweeted. 'I love you *****' God know how sad and shocked i am. After know about it istop talked with him. I get mad whenever my friend talked about him. I shouted at them okay. He still send me a message and all. But whenever i saw him online on fb i turned off my chat. So thats how it ended. Our friendship. But he wished for birthday right after his girlfriend wished it for me. AND it annoyed and piss me off to death -__-

So ? Can you help me ? Give me an answer.