Money might buy luxury, but it can't replicate the raw, messy connection you two once had. Maybe he's realizing that after years of sterile corporate dinners and sycophants, your refusal to coddle his ego stands out. Billionaires collect rare things—art, islands, vintage cars—and suddenly, you’ve become the one thing his wealth couldn’t keep. Nostalgia hits hard when you’re surrounded by yes-men; he might miss the days when someone called him out for leaving dishes in the sink. Or worse: he’s bored. No amount of private jets fills the void of a partner who actually challenged him.
There’s also the control angle. Some people can’t stand the idea of being 'left,' especially by someone who didn’t cling to the lifestyle. If you walked away without a backward glance, that’s a bruise to his pride no trophy spouse can soothe. He might be testing if he still holds power over you—seeing if his name or resources can reel you back in. Or, just maybe, he’s had a genuine epiphany about what matters. But I’d watch for actions, not grand gestures. Does he show up as a human, or just throw money at the problem?