Is AUTHOR wrong in the post ? POST : I(20M) live with my dad (61) and stepmom (40). My dad doesn't have a steady income and gets paid per job. My stepmom meanwhile is on disability and therefore gets a fixed income from social security. I am a student working part time, and I plan to pay off a truck I am buying from a friend. I started making payments in December, and told him I would finish in March.

Last night my stepmom asked me if she could borrow my car because my dad would working late. I (reluctantly) said yes after she said she would be gone for just over an hour. She was gone until close to 11:30. She left around 7.
An hour after she got home, she came back into my room, and asked me if she could borrow $40 because her friend was at the casino and she wanted to go. I said sure, but all I have is a hundred dollar bill, and to just bring me the $60 in change back because it's the last of my money until I get paid and give me the other $40 when she had it. She hadn't asked me to borrow my car, I assumed my dad had come home sooner than expected and she was taking his van. Later I find out she took my car. I let it go because she has always been good about asking to borrow it and I let her borrow it earlier.

This morning, I get up and find out that she didn't come last night and slept at her friends house with my car because she didn't want to get pulled over (I have a headlight out). So my dad takes me to get my car, turns out now it has a flat tire. Not only that, but I also learned she disregarded what I said about the $60 and spent the entire $100. I was pissed about the money, but I didn't have class today so I wasn't super upset about the tire.. I just bought the tire a year and a half ago and I knew the warranty was still good, so I took it to the shop I got it from, told him what happened, and he said he would take care of it. I thought everything was done.

Then he called me saying she must've hit a pothole last night because she dented the rim and broke the seal on the tire, and that the warranty isn't going to cover it. He said he could fix it and give me a break on the tire but, best case scenario, I'm looking at minimum $200. I then told my dad all of this and he said I should just not fix it since I'm going to be getting rid of the car in two weeks and it would be a waste of my money. But I'm not just getting rid of it I'm giving it to my mother since she needs a vehicle.

So, a long story, and probably more than I needed share, but my question is: Would I be the asshole for asking my stepmom to pay for the repairs since she caused them? If I dish out $200 to fix this thing, then I won't be able to keep my word and give my friend my truck payment for this month. At the same time, I refuse to screw my mom over in this situation and make it her problem. I also know 100% that my father is going to argue that my stepmom shouldn't have to pay for the repairs because I can't be absolutely certain that she is the one who dented my rim, and it wasn't me.