Is it a good idea to buy a car from a girl that you have crush on?

Its a used 95 honda she paid 2,000$ for it. I told her i will give her 1,000 for it. She said she cant do that so i then offered her 3,000 for it then she just looked confused im not sure if that is good or bad. So i finally offered her 4,000 for it and she just said that she will think about it.

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