Well but her personal story at that point IS over. She comes to terms with herself and manages to take control of her ShadowHulk by accepting that it's part of her and that she will never get rid of it, but may be a good person nevertheless. I mean, yeah, it could probably be more elaborate then "I need some time alone" (night passes) "Well I won my inner struggle, let's have sex now", however as it is just a side plot of game that by itself is certainly not short... I don't know, do you have any RPG that done it better?
Also, there's that small problem with capabilities of TES engine in terms of facial expressions being on the level of Clint Eastwood - it's quite hard to communicate personal story without moving a damn muscle. (Disclaimer: I love Clint Eastwood)