How do you say i love you Cameron in spanish?

A lot of ways.

Te quiero mucho, Cameron.

Te amo, Cameron.

Me encanta, Cameron.

Te amo would go best, especially if he doesn't know Spanish.

Te quiero mucho, translated, means I want you a lot.

Or you could say:

Te amo, mi amor.

Or mi corazon. :)

My love.

My heart.