I Have A Low Tolerance For Extremely Selfish People

So a "friend" told mer her husband could find a car for me for considerably cheap. I ultimately agreed. Now I've had the car for 63 days and it's broken down at least 6x's. This guy has been coming up with unbelievable amount of excuses as to why i can't get my money back. Being upset doesn't even begin to cover how i feel. And she's of course made this about her and how I'm wrong..needless to say she's full of shit and out of my life..this is a pattern with her and I'm done.