Now I realize I described probably lot more than you wanted, but there you go.
Which brings me to question for other Morrigan romancers... How do you picture your Warden's progress in his relationship with Morrigan?
My Warden came from a noble and privileged background. Born and raised as "the spare" in the Cousland family, he was never expected to take over Highever as teryn (though some said he would have been good at the job), and in some regards, he felt without an identity compared to his elder brother because of this. As such, he'd turned into a bit of a playboy (hence having a one night stand with Iona). I got the feeling from the origin story that his mother had been trying to marry him off for some time, but had been unsuccessful.
Morrigan fascinated him from the very beginning. She was the most beautiful woman he had ever seen. She wasn't like the noble girls his mother had introduced him to so many times before, and he liked that. She was different, mysterious and dangerous, and she wasn't afraid to speak her mind and disagree with him. He really liked that. Originally, I believe he lusted after her and jumped into that cold tent as soon as the option presented itself. But after that he began to think about what he was doing and why, because he realized he had developed some small feelings for her after for a short time.
He looked beyond the icy exterior and saw a woman who was damaged goods, especially when she begins to open up to him about her past and her upbringing. He couldn't blame her for being the way she was and having the views she did. He understood why she was apathetic about humanity. No one had ever been there for her and no one ever cared about her. She was taught that love and friendship are weakness and that it was a dog-eat-dog world out there.
And then one day it hit him, shortly after their trip to the Deep Roads. Around the time when Morrigan made the joke about painting the shed and baking bread, he realized that his emotions ran deeper than he original believed. He'd become rather protective of her (often defending her when other party members made unkind comments about her). He enjoyed making her happy and went out of his way to do so. He wanted to be there for her, he wanted to show her the good, he wanted to be somebody she could always count on. That's why he went after Flemeth for her, he wanted to prove himself and he wanted to protect her.
When she begs him to break up with her, he couldn't do it, his need to be there for her was too strong. He'd fallen in love, and it was apparent that she felt the same.
And then there was the DR. When he saw her standing there in front of the fireplace, he wasn't sure what to think. When she told him what she'd wanted from him all along, it was like a sword in the heart. Though she assures him that what she felt for him was real and was not part of the plan, it didn't ease the pain at all. He almost rejected her and a part of him wanted her to leave... but he loved her too much and he needed her by his side for the final fight. So he accepted after pondering over it for some time.
Then when she leaves, all he can think about her chasing her to ends of the Earth. Throughout the Awakening expansion he often thinks about her and wonders where she is. He wonders if she's safe and he wonders if she thinks about him. He wonders about their child, he wonders if she had a boy or a girl, he wonders what she named him/her.
And then Witch Hunt happens and it was like ripping open old wounds. He was still hurt by her deception and her departure, but his need to find her and speak with her again was too great. Ultimately they go through the mirror together, and as soon as he got to the other side the Warden ran to hold his son for the first time. They lived together quietly in some small hamlet in northern Orlais where Morrigan could studied elven history in peace. They made regular trips to the Crossroads as well.
One day the Warden quietly complains about hearing some sort of ringing in his ears all the time, and Morrigan becomes ever anxious, knowing this to be the onset of the Calling. She focuses on finding a way to cure it, but as wise as she is, she cannot come up with a solution on her own. She finds a potential lead one night while leafing through a book by candlelight. This ultimately leads to their separation. The Warden travels west alone to follow this lead she found, and Morrigan sets her sights on the Imperial Court.
I like to think that my Warden became a better man because of Morrigan. He grew up because of her.