I actually have fun with writing those parts of him. But, I always thought Anders in DAOA had a strong sense of compassion and justice, and a lot of simmering anger below the surface, with the sort of charming playboy persona just sitting on top. So I basically reversed how I used to write him, and have the silliness and flirtatiousness come out on rare occasions with the more serious aspects as the dominant force in the personality.
I joked that after reading The Brothers Karamazov I had slowly turned Anders into middle-of-book Dmitri in AOA, and I suppose now he's firmly at the repentant end of book stage.
I'd like to think that a lot of mages always had this element of cluelessness to him when it came to women, since living among other social freaks in a tower doesn't exactly build social skills. I just imagine Justice broke his mental filter where his crap attempts at being what he thinks is romantic just spill out of his mouth before he can stop himself.
You have to figure, mages were never around couples... ever. They didn't have parents or aunts and uncles or anything like that to show them how normal people in relationships behaved. So whatever they know is based on conjecture and maybe books. That's going to lead to some screwed up and melodramatic ideas. (thinking of the over the top romances of the middle ages and early renaissance... Sir Gawain and the Green Knight or something along those lines.) Shoot, even now, if your ONLY guide to how people acted when they were interested in someone was books and movies, you'd probably end up slapped a lot. Or arrested.
I thought the way they made him so over the top camp when discussing his manifesto and the tranquil solution was spot on with hardcore political activists I've known in my life. (we're not talking anti-war rally level activism, here. We're taking "Here, let me give you the current issue of Worker's World and we can discuss the growing threat of American Imperialism over tea" level activism.) So I guess in that aspect I just channel the hardcore communist I dated a few years ago.
"The Income Gap is not the problem, Lupus! The wealth gap is merely a symptom of the true crisis in America! You don't understand, our obsession with Material Goods and Property Ownership will Destroy Us All! The growing rift between the Working class and the Bourgeoisie is indicative of a society in Crisis! It is only a matter of times before something snaps!!" *insert fist slamming into palm here*
Ah... but he was passionate. *ahem*
But, that sort of intensity is easy to Thedasify...
"The Circle is not the problem, Hawke! The Circle is merely a symptom of the true crisis in Thedas! You don't understand, the Chantry's obsession with Control and Power will Destroy Us All! The growing rift between the common people who rely on healers like me and the Priests and Templars ignoring their practical needs while sitting in their golden Chantries is indicative of a society in Crisis! It is only a matter of time before something snaps!" *insert fist slamming into palm here*
So... I guess just hang out with more extreme left wing would-be revolutionaries?