Guys: How to keep the texting conversation going?

There is this Guy. ( Most common starting :P) I have developed a crush on him. I had initiated the conversation on FB and we talked a bit, one day he suddenly asked me who my crush was, out of blue. He suggested some named which included his one friend one other guy and at last himself. I replied with a 'No comments :P" on his name.

He flirted a bit with me from then and confessed that he likes me a but a little bit. Then I said to him that the situation was same for me and he replied that he thinks its good then. Amidst that he asked for my Whats App no. And I gave him. (We're in the same school actually)(Note: he also said that we should get to know each other first, then any relationship or ilu)

[Backstory:: We knew each other a little bit and talked a bit when we were chosen in a group for an assignment. He joked and made a little small talk. He's a charmer and I have to admit his sense of humour is out of the world. There is a very beautiful girl in his class, who's unfortunately his crush from a long time.. But considers him just a friend. B efore the FB conversation we had gone to a school trip, and my best friend commented that he was gazing at me quite often]

He initiated the conversation on Whats App and we talked. That day he even talked about the possibility of 'us' being in a relationship. From then whenever we talked it was I who always initiated the conversation.One time he messaged me first to say that we should be friends, I was heartbroken but someone messaged him n talked. But whenever there was a situation when we would be in the same room I would always feel his eyes on me and friend tells me that he stares at me frequently and even when my friend catches him, he doesn't stop.

Rarely he used to initiate a topic that was related to something happened. He once hinted that he isn't much of topic starter on texts and I have come to know he can't. Once I had posted about my little crush using a code name and he texted me to ask who is was I replied with a no one and he pestered me till I gave him a name. And if I will tell something and then say Oh nothing he will pester relentlessly till I spill the beans. Even if its about me.

Once, he was out of station. I had texted something not meant to be replied but he sent a text on the lines of sorry, can't talk I am on roaming etc. I had tried to not text him but even after 5 days he didn't texted. So I only texted. :(

I tried this once again.. and this time I was firm on my stand. I had to decided not to text till he initiates. Nothing happened till the fourth day. ( its just I was coming from somewhere and hw was going in the opposite direction and he did a fake fall stunt when he was on my left side, its was startingly funny. And i knew it was meant for me. Note: he had returned from a long leave) On the fifth there was an fair at school and we had to go there in casuals. I was there too when I spotted him and then ignored him and he was gazing(something he does every time he sees me). The next time his one classmate recognized me and we shook hands that time he stopped in his tracks and turned back to see what we were up to.

That day I got a message from him complimenting my Profile pic, I replied with a thanks and then he sent an emo again. We started talking a bit and when once I sent a single emoticon. He talked something about the exhibition which required to talk more.

Note: Recently he has given upon on his crush and busy in forgetting her. He always stares when in front of me live. He is now flirting some more. When I compliment his DP he's like Luv u 2 :* :P on the same day I mentioned about coming to his class to take a notebook and he said and come take his with a emoticon with hearts in the eyes and :P and suddenly I heard he was a fan of my favs. (Sometime back)

Phoof! So long. Now can you explain me a little what he wants and what is going through his mind? Also tell me how should I text him to keep him interested and what else should be done.?

My bestie says that he definitely likes me. I am really confused. Please Guide.