I was 15, her and my mom bought the car for me. I know I should get them the tickets, but I don't know if their going to be happy I did it for them. Also We have the DP so they would have to eat alone or at the condo they rent. I guess if they don't care, it's only money right? It's my money so HD said "Do what ever you want." Let me just say AAAHHHHHHH!
If the money for the car was a loan, you should try to pay her back. Like others said, either repay the money or offset the value in the ticket price(s). Just sit down with her and the two of you come to an understanding that this is part/all of the loan repayment and both of you sign off on it, so there's no misunderstanding later about what exactly was "a gift" and what was the "loan repayment."
Regardless of your age at the time of the car loan, if she and your mom bought it for you with the understanding you'd repay the loan, I'd encourage you to do that. If that's repaid in cash or in equivalent ticket expenses, it's a debt that's nonetheless repaid. Not addressing the issue is more than likely to create hard feelings down the road.
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