My best friend messed my s197 up badly!

So for context I got my dear car around 2 years ago. It is a s197 with a 6 speed mt82. I could not have been happier with it, but I was younger when I got it and had no credit so I have a pretty bad interest rate and my payments is not that bad but I’m going to be paying on it quite a while. The payments got to much for me since me and my wife just had a baby so me and my best friend set up a contract where he gave me his jeep thats a 2012 jeep liberty. So we did the trade and he was paying me monthly and in the contract, I stated that if something were to happen that we would trade vehicles back. He was also supposed to get the mustang in his name. so he shows up to my house last week and says that he can’t make the payment anymore and when I tell you, he made this thing in such bad condition it’s not even the same car. The AC is out the tires are bald he wrecked it as well. The driveshaft is broken. He almost blew the transmission. The airbag light is on now check engine light and the thing is filthy. The whole outside is covered in red dirt. The inside is disgusting. Also I did some research and it is going to cost us 8-10k to fix this. I have a family to think about and he just costed us thousands of dollars to fix what he did to the car. so am I the asshole for not being friends with him anymore?

So for context I got my dear car around 2 years ago. It is a s197 with a 6 speed mt82. I could not have been happier with it, but I was younger when I got it and had no credit so I have a pretty bad interest rate and my payments is not that bad but I’m going to be paying on it quite a while. The payments got to much for me since me and my wife just had a baby so me and my best friend set up a contract where he gave me his jeep thats a 2012 jeep liberty. So we did the trade and he was paying me monthly and in the contract, I stated that if something were to happen that we would trade vehicles back. He was also supposed to get the mustang in his name. so he shows up to my house last week and says that he can’t make the payment anymore and when I tell you, he made this thing in such bad condition it’s not even the same car. The AC is out the tires are bald he wrecked it as well. The driveshaft is broken. He almost blew the transmission. The airbag light is on now check engine light and the thing is filthy. The whole outside is covered in red dirt. The inside is disgusting. Also I did some research and it is going to cost us 8-10k to fix this. I have a family to think about and he just costed us thousands of dollars to fix what he did to the car. so am I the asshole for not being friends with him anymore?