Others have stated it doesn't make much sense for certain classes to romance certain LIs, but I'd rather that be commented upon than gated off.
Fenris: Mages, mages, mages. Mages everywhere. I can't seem to get away from them. First Danaeris, then Hadriana, you, and my "sister." I must be crazy. Makes me wonder if you're using blood magic on me.
Hawke: I would never, not on you.
Fenris: *rivalry gained* I guess it will be something I have to learn to live with.
/ *rivalry gained* If I ever find out you've been using blood magic on me, I will crush your heart like I did Hadriana's.
Hawke: I am the one mage you never have to fear.
Varric: ...Stop.
Saarabas: What is it?
Varric: It's...the Viscount's Keep, the smell of the blood from the ones who stood up to them, and the viscount looking up at me from the floor. He was dead, but he was still looking at me. And then they took Isabella, and Hawke...just let them. After that, I never thought I'd see the qunari as anything but--
Saarabas: *kisses him to silence him* I'm tal-vashoth, not qunari.
Vivienne: *chuckles*
Elfquisitor: What?
Vivienne: My father believed life had an "upward trajectory." If he'd seen me here, with you, he'd be spitting hot coals.
Elfquisitor: Don't many nobles have an elf or two on the side?
Vivienne: Among the nobles, ma cher, who one beds, who one loves, and who one commits to for life are often three entirely different things.
Elfquisitor: The formidable Madame de Fer, dallying with an alienage age. I'm sure you're the most talked about lady in all of Orlais!
Vivienne: I know! And you, ma cher, with your fancy armor and armies flying your banner. What must the alienage say about you?
Elfquisitor: Look at him, his nose in the air, his armor all bright and shiny, bought with Madame de Fer's coin, I'm sure, paraded about the Orlesian balls like some sort of prettied-up pet. Look at him, he's forgotten who he is, forgotten the alienage that raised him. Why doesn't he bring his armies home to set his people free?
Vivienne: You fight for all of us, ma cher.
Elfquisitor: I'm aware of that.
Vivienne: Then that's all that matters.