Craving. 

"Cozy" is really just "cramped" in the right context. 

Finding comfort in a cold, cluttered car could be considered crazy! Contrarily, one word calls forth considerable contentment;

"you."

Beyond comparison, any concern that can be chronicled is cast away at first contemplation of you. 

To be "cramped" with you is a chance that I covet. 

Constantly.