I didn't know your friend in person, but I'm sure he was a very nice guy and that tu guys had a lot of fun together.
I'm sure he saw tu as a great friend too.
Anyways, whenever tu feel the need: tu can always talk to me. I'll be there to listen, give tu consejos when tu need it, to laugh with tu and to mostrar tu that I care.
tu are a great person and I'm sure your friend thought so as well. I'm sure that he'd want tu to be happy and enjoy the rest of your life, even if he can't be with tu anymore.
Always remember that tu are loved. (: