Does he like me? what do you think?

okay this guy i like gave me his num after my friend gave him a note from me and he didnt read it. he also looks at me and when we talked face to face he blushed and looked nervous. (but that was once that we talked face to face) then the day he gave me his num we txted each other for about an hour then he had to go. that night he txted me around 10pm and said hey and we talked for another hour and its only been like a few days. maybe 3. does he like me. oh and he knows i like him.