If it's true, if Jon's to be sent to the Wall, he'll never marry at all, and if Daenerys' suspicions are correct, she'll someday be given like a trophy, forced into a marriage with little regard for what she wants at all. Life isn't fair, no, and people like them especially have to take what they can get however they can get it.

She sinks down at his prompting, knowing her smile has gone impossibly shy. She's less naive than one might think though by no means truly knowledgeable in these matters, since all of what she knows is intuited and overheard and she's never been able to ask anyone about anything even resembling this; she doesn't expect it to be all up to Jon (she doesn't think she'd be comfortable just letting him take over entirely, at least yet) but she mostly just trusts that they'll figure something out. It can't be so complicated.

Kisses aren't complicated. Laying back isn't complicated. Winding her arm around his shoulders isn't complicated. In the back of her mind, she's wondering if they should worry about undressing, a little bit or all the way, but she doesn't mention it or even allude to it save the way she tugs just slightly at the fabric of Jon's shirt.