when my 1st boyfriend and I started dating, we were away from each other quite a bit (he went to school about 5 hours away from me.) One thing we did was send an old t-shirt to each other that we had worn for the night...
So he got a t-shirt from me that smelled like my lotion and shampoo and some perfume (because...right...like I wasn't going to spritz on some )
maybe you could do something small like that...or bake him his favorite dessert...just because
)