You're under the car. They're over it. Or maybe it's vice versa. Either way, you're both in love and a wrench set is responsible. That's your future.
There are few times in life you, tinkerer of either gender, will feel as calm, in control, or downright awesome as when you're solving the car problem of your significant other. It's win/win, you know? For one brief, shining moment... you're right and they have to shut up and adore you for saving their buns. They can't say a thing! How could they? If they make you mad you can just stop, pack up your tools, and abandon them!
And, best of all, it's not gender specific! Are you a woman with a husband? Hey, great! A lot of guys can't change their oil these days. You learn and boom. You've got the ace. Are you a man with a husband? Hey, perfect! Get under that car and show that jerkface what he should have learned in shop class. Are you a man with a wife? At last you get to can get away with the "don't worry your pretty head about it" joke. Are you a woman with a wife? A woman with two wives? A man with six husbands, two wives, and a complicated relationship with a gender-neutral car owner? Even then, you're STILL GOLDEN!
In fact, for any combination of gender and sex and relationship status you can think of, there's a great situation when you can wrench the heck out of a car and turn it from broken to functional while also feeling a sense of accomplishment at a job well done.
Even if that status also just "single rich heterosexual white male in love with his vehicle." Hey, it might sound nuts, but it takes all kinds these days.