What does a man mean when he says he misses your smell?

Anonymous

My friends with benefits and I have been seeing each other casually for 4 years. I haven’t seen him in a few weeks because I’ve been working my ass off. He text me yesterday and it was a little weird. “Miss you. Your smile, your smell, your little smart ass all together”. The smell part is what seems weird.

What does a man mean when he says he misses your smell?
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