Lingering handshake between a man and woman?

I've known this man off and on for the past 2 years.

I'm back in town and got the chance to see him the other day at an event and when we saw each other he reached out his hand for me to shake and he turned it into a hug. After we got done talking, I went to go shake his hand and as we were doing this some people came to walk around us and we moved to the side without letting go for about 5 seconds.

I've had the biggest crush on him for about 2 years but he's about double my age, so never made a move, but after this happened the other day, I'm wondering if I should ask him out for breakfast when I get back into town next month.

Lingering handshake between a man and woman?
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