My wife has spent all our wedding money.

First of let me start by saying we got married in the courthouse before deciding to have a wedding. My wife and I were having a hard time saving for a wedding so she asked her parents for help. Through out the process of planning, My wife, would blame me for everything. She would say that her parents won’t give her a lot of money because they weren’t sure about me and she would tear me down for not being financially available. One day after work my wife called me and said good news, my dad is giving us $8000.
When I got home she tells me that she’s going to pay her car off. I felt very disrespected. I asked her about the wedding and she said that she thinks it’s wiser to pay her car off since it was only $6,000 and would be clearing debt. I told her that I didn’t agree but then she told me it’s her money because her father gave it to her. Fast forward 3 months later, she has spent all the money and her car still isn't payed off. She’s been asking me for help financially and continues to blame me for not being able to help her. Someone please help me understand!!!!