Am I Being Unreasonable? Original Owner Wants Car Back

The guy who built my car tracked it down and asked if I would sell it back to him. (I'm the 2nd or 3rd owner since he built it) He brought up the memories he had with the car and his kids, and said he only sold it because his wife said it was her or the car, so he sold it and she still divorced him. He offered me some trades of vehicles worth MUCH less than the current value of the Duster. I just stated that I had made my own memories with my kids and the car and the fact my wife bought it for me as a wedding present. If I was going to sell it, it would have to be much higher than market value, since it wasn't currently for sale and my kids are attached to it. I never heard back.