How could he be sure that i was the kind of girl he wanted?

i met him, we clicked, i liked him, he liked me, he played games, i did not understand why, now i do, but what do you think made him so sure we liked the same things, is it the ual side of a friendship which guides you more than the emotional? did he want me to walk away or get to know him more in his own little way? im constantly asking my friends but they think he is beyond comprehension! maybe you here could shed some light? just say what you feel!