Last year, my buddy's business took off and he's making a ridiculous amount of money. He makes more in 6 weeks than most people make in a year. It's sick, I admit even I'm jealous of him.
He'd been dating the same girl for 4 years. She has a 'strong personality', he's beta-ish and easygoing, so she often just bowled him over and got her own way. Even so, it seemed like they were happy, they had discussed buying a house together, all signs were pointing to marriage in the near future -- which is why it was such a surprise when he broke up with her 2 weeks ago.
I finally got to see him last weekend and his side of the story is crazy. When she found out exactly how much he was making last summer, she immediately wanted to quit her job and "come work for him" (even though there's nothing she'd be qualified to do). He said no, but from that point onward she regularly pressured him about it -- increasing her demands to wanting to travel the world together on his dime, have him pay off her student loans, etc.
She started getting unjustifiably suspicious. She wanted to know where he was at all hours of the day, who he was talking to, who he was texting. I remember we'd go out and he'd stare at his phone half the night answering her calls and texts. He basically wasn't allowed to speak to or hang out with girls alone anymore, no matter the scenario.
She basically ruined their Christmas by being standoffish all day because he "only" got her a $500 watch. He said by this time they weren't even having sex anymore (!) -- she was just resentful and hostile toward him pretty much 24/7. But that didn't stop her from talking about marriage and trying to guilt him into proposing soon. Every day she'd be showing him expensive cars, houses, wedding venues and travel destinations. All she talked about was money and ways to spend it.
Finally, two weeks ago he woke up at 3AM to find her awake and going through his phone. That was the nail in the coffin; after a huge argument he ended the relationship. She came to her senses and tried desperately to get back together a few days later, "apologizing and taking full responsibility for everything", but he (smartly) refused. Now she's been running her yap to all their mutual friends about how "money has changed him" and "he thinks he's too good for me now". So now a lot of people think he's an asshole.
I found the whole scenario amusing. If she hadn't altered her behavior, they'd most definitely still be together right now. Most girls would start cooking him 5-star meals and fucking him like a pornstar, yet she basically did the opposite. I don't understand her thought process, it's like the thought of being rich short-circuited her brain.