Why??

I wasn't thinking about him today but they talked about him in front of me and it starts to make me think about him....why is that like that??? They messaged him for lunch today and he agrees…I never thought that he would agree…we went to MV for lunch … at Kenny Rogers….he treated us again….pai seh lar…every time also he treat…I did not talk much to him today and he did not talk much to me also…I wonder why!!! After that I keep thinking about him until JT messaged me….he asked me whether he still got the chance or not…how should I reply to him??? I really did not know what to reply so I did not reply….I need help!! And I need to concentrate on my studies too….Results are not that good… :(