Would you ask about two people and chemistry just because they are single or because you saw something?

So went for drinks with my best friend and her husband, my friend (a guy) also came along as we used to work together. I have had a crush on my friend lately and always suspected he might have a crush on me too (never acted on it) we have our own in jokes, and banter and just how he is with me sometimes.

Later that night my friends husband asked if there was something between me and my friend, and she told him he thinks that because both myself and my friend are single. Would he have just asked because we were both single or because he saw something there. Would love your thoughts.

Would you ask about two people and chemistry just because they are single or because you saw something?
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