When a guy blushes after you call him sexy is that a good thing?

There is this guy I have a thing for and been flirty with him through out texts.

There is a bit of an age gap. He is 50 and I am 34.

After calling him sexy he says I made him blush. I guess that is a good thing?
When a guy blushes after you call him sexy is that a good thing?
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