Hawke (any) and their LI (any) split up at some point in the final battle, but they've already planned to flee Kirkwall, so they vow to meet at a certain spot after all the fighting. Hawke and maybe other companions make it through the fight and wait at the spot for LI to show up. But they don't come. Other companions start to fear the worst; it goes from "they'll be here soon" to "Hawke, maybe they aren't coming." Hawke insists on waiting even though it's dangerous to stay in Kirkwall - Hawke supported the mages and even without Meredith there are templars who would love to see them dead (or any scenario that works). Hawke refuses to give up.

LI never comes. But Hawke's enemies do. They outnumber Hawke and the companions, who are wounded and exhausted to begin with. And they have LI with them, bound and beaten. After everything, after coming so close to victory and escape, Hawke's lost.

What happens? Do the bad guys capture Hawke and friends? Execute the LI and then Hawke, or the other way around? Torture them? Imprison them? Parade them around as a sign of victory? Just make me cry, please! Angst, violence, tragedy, the most painful of defeats. (Partial to Isabela/F!Hawke and Fenris/M!Hawke but really, anyone works.) No squicks, so graphic violence is fine, as long as the emphasis is on the emotional reaction and it's not just gratuitous.

http://dragonage-kink.livejournal.com/15999.html?thread=61856383#t61856383