Is this a reasonable explanation to drop your friend?

I was buying a new car (which I told my friend about) and when I went to the car dealership, the sales guy was flirting with me and we eventually exchanged numbers. I texted my friend about the guy and she said exactly, “you’re being obsessive and your actions were totally inappropriate. You went to him to buy a car that you don’t even have yet, he’s just trying to get you to buy/lease.” (I text in chunks, so I didn’t even tell her the part where HE asked for my number and the part where I did actually buy a car, before she said all of this)

I told her how her words hurt, and instead of apologizing, she said that I made the encounter sound “obsessive” and that if she were in his shoes, she’d be annoyed that a client misinterpret her job.

Is this a reasonable explanation to drop your friend?
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