What are the signs an older man (35-40) actually likes a younger girl (20-25)?

Anonymous

He sends quite long messages as answers and he drove me home when I was a bit drunk and checked in if I was alright the next morning.
He didn't make a move or said anything about my looks, but sent a winky emoji saying that I'm not like others girls (in our friend group) and that he could realise this in our toooo short convo already... ;) He is good friends with my husband.
Maybe he fancies me?

What are the signs an older man (35-40) actually likes a younger girl (20-25)?
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