My question involves divorce in the State of: Virginia

My husband has had multiple affairs and fathered 2 kids with other women during the past 4 years of our 14 year marriage. I am done with this relationship. I have decided to move to Kansas to be near family. (I have no family in VA). We have no kids. Here are my questions:

1. In which state do I file the divorce?
2. Can I labeled as "abandoning" the marriage?
3. His mom bought me a car and I have been making the payments to her. As the vehicle is financed, can I take the car with me since I am paying for it?