Wait, where did that was? About warm chakra, she saw Sasuke as dark man, and still followed after him, and she clearly not forgive him (that scene in prison) and development, there was no room for anyone who is not Sasuke or Naruto.
But it would make huge sense if Karin would end up with Sasuke, clearly more then Sakura ended up. There would be meaning to her to stay in Konoha and resolve some Uzumaki story line with Naruto, another thing - it would make Naruto and Sasuke brother by bloodline and will seal the circle or hatred between Uchiha and Senju... but oh well kitten just don't go according to logic.
She notes his chakra is getting darker and cold at the beggining of LOI arc, She says that it wasn't like that
She forgave him, men, their reunion shows it, Sasuke says a simple sorry and she melts like ice cream, 
For me Sasuke shouldn't end with anyone. this is ( was) shonen there was no need for everyone to pair up
But i agree SK wuld be less worse than SS for the same things you said
Edited by Nar123, 21 December 2014 - 02:28 AM.