Got this one player.
In Pathfinder, his character meets the Lady of a small island, basically a city state. She's a widow, has problems with local monsters. PCs defeat monsters, save Lady. She sees the opportunity to ally with some powerful strangers, offers to marry one of the PCs, any one. This guy steps forward, the wedding is great, he's the new local Lord. Huzzah.
Same player, Modern day setting. Meets vice-president of 'everything but shoes' inc. Her dad owns the place, so she is essentially 21st century Princess. He manages to score a date, then plays the same 'How can I serve you, M'lady' shit that worked in Pathfinder. Shot down with extreme prejudice, blames GM (me).