Since we're making lists ...
FCousland: Alistair. I did not start out planning to be queen! I went into DAO not knowing that Alistair was the heir to the throne, and my Cousland fell for him before they went to Redcliffe and he told her the truth. But being queen sure is a nice fringe benefit.
MAmell: Ruthless, power-hungry ... and a total sap for his Antivan assassin. Until I hear otherwise, I assume they had a great time taking over the Crows together.
FAeducan: Managed to have a complex soap opera love-life. Started out with Gorrim, then developed unrequited feelings for Sten. (I wish there was an option to talk about this in game, the way there is with Aveline in DA2. I wouldn't expect anything but utter incomprehension on Sten's part, but it would have been neat to be able to say something.) Meanwhile, Leliana ninjamanced her due to a bug, and Aeducan had to break up with her twice despite nothing ever happening. She also slept with Alistair after she'd arranged for him to marry Anora, because she felt bad about sending the poor boy off a blushing virgin. And then she did the Ultimate Sacrifice and everyone involved felt bad. (I think it's probably just as well she stabbed Zevran without waking him up, or it might all have gotten even worse somehow ...)
MMahariel: Naive and easily seduced by Morrigan. Was furious when he found out why she'd really been following him around all this time, and refused the Dark Ritual. Had a change of heart after he heard she was pregnant anyway and ran all over Ferelden looking for her. They reconciled in front of the Eluvian and took off together for parts unknown.
FTabris: Didn't want to get married, and wished there was an option to say 'but dad, I don't think I like men!' Wasn't too sure about humans either at first, but Leliana won her over eventually. Alas, Morrigan was one of the humans she didn't trust, so she ended up doing the ultimate sacrifice.
MBrosca: Was only into dwarves. Forever alone. (Well, he did the Dark Ritual with Morrigan, but not for fun.) It's a shame Sigrun wasn't an option, because he'd have gone for her in a heartbeat.
MSurana: Flirted with every girl he met, with the notable exception of Morrigan. (He was a good Andraste-fearing boy and didn't approve of her apostate ways.) Ended up in love with Leliana, but did the Dark Ritual. He was very, very upset about this whole thing and ended up stabbing Morrigan at the Eluvian as a result.