In our game, as with most others presented here i think, Svetlana and Oleg became members of the ruling council as councilors for trade and town, for which they are the perfect (and only available) canditates.
As for the DC: theirs is propably not a marriage founded on true love,
more of convenience ( the mail-order-bride-sceem was mentioned in our game, too), but Olegs a decent guy with a steady income and property of his own and they make a good team. She´ll never leave him.
DC 20, at least, for a fling,
DC 15 for a thorough kiss, for DC 11 i´d say he gets a nice flirt and a chaste thank-you-kiss on the cheek. Barbarian, indeed!
DC 25 Running away with him into the wilds and adventure.
She won´t fall for empty words, shiny steel and blood-shot eyes;).