Asap need help anyone plze?

ok this boy i like is named colby i need to know how tto start a good converstaion first off i bring up a good conversation then we start laughing in a txt like lol or hahaha but he keeps repeating him self what do i do...and like 2 or 3 hrs. ago i bored him by not bringing up conversations after tht on he told me he needed to go whats happening and also im half sure he likes me what do i do whats happening and what things can i do to keep us having a great freindship....... oh and p.s im having feeling that we might start dating in highschool or somthing p.s we live 50 mils. apart hed doesnt know..........and hes txtn me right now what do i do HElP please please thnx soo much if u have any ideas please email me at jessmarie1999@ymail.com thnx