I have already seen puppy-eyed Cassandra in DotS. I have also seen her destroy furniture out of the anger. Either way, breaking up with her is not gonna happen.
Varric: So you and the Seeker huh?
Inquisitor: She's brave, beautiful...I'm lucky to have her in my life.
Varric: You forgot her temper.
Inquisitor: Cassandra's...passionate. We've certainly come a long way since we first met.
Varric: You're still kind of afraid of her aren't you?
Inquisitor: I love Cassandra. Seeker Pentaghast scares the ever-loving Maker out of me.