Why would a women be incredibly rude when rejecting a guy?

Basically I’ve been talking with this chick on and off for a year.

tbh I wasn’t even interested in her but she kinda grew on me as we talked more often once we got to know each other.

Now, in these conversations she’s said things like the following whilst teasing me…

I want a good man? you’re not to old for me (when I disqualified myself). Even making unprompted sexual innuendos…

Anyway after a lot of flirting from both of us I decided to just pop the question, ie would you be interested in hanging out or going out for dinner sometime?
basically I was on the receiving end of her outburst where she was incredibly rude in rejecting me, laughing and saying our mutual acquaintance would be more preferred than I….

he’s super pushy, doesn’t take no for an answer.

my response was essentially all good you take care.
so clearly I missed something here…
what would drive a girl to be so rude?
Why would a women be incredibly rude when rejecting a guy?
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