@Pinky1,
No you "want" to tell him, through fear that if you don't he may not return to you.
Before he left, did you look into his eyes, laugh, hold him, love him? I would say that you did.
I would say he knows your feelings. Being in the Navy can scare some guys, you know, what is she up to? What if she meets someone else while I am away. Best thing to do is give him what he has asked for when he contacts you, make him smile, laugh and know you are there. As time goes by and he sees you are still there he'll be fine. If, he feels you have been too over the top, too clingy, then that's a different issue as to why he wants to think. If that's the case telling him is the worse thing you can do. Like I said, you know he knows how you feel.