Disagree completely.
...Don't think I even need to say why. It's been gone over like ten times in the last week.
Disagree about the comic breaking character for various folk? Well, that's fine. Everybody is going to have an opinion. The cool thing about them is it doesn't matter worth a damn if yours and mine are different. It's OK for me to have mine, and OK for you to have yours.
To clarify my opinion as stated above, though... I'll just add on a little more here. Just because I believe Marten probably still likes Faye a lot doesn't mean I think he's going to do anything about it. In the highly unlikely event anything should happen, Faye would be the first to make a move. Maybe if she split up with Angus in due course for unrelated reasons, then Marten would make a move, but not right now or any time in the foreseeable future.
How much, exactly, does Angus McPhee know of the history between those two? I mean he obviously knows some of it, and he's talked about it with Marten when they were being oh-so-very-fancy. But he may not know all the details. And if he finds out that Dora - who looks perfectly balanced and sane from the outside - had a breakdown and ended her relationship with Marten because she doesn't think she can trust him with Faye? I wonder what thoughts will go though Angus' mind.
That could be an
awesome plot. It could be, but it probably won't be as far as I'm concerned, because it will be full of ridiculous declarations by Marten and Faye that they don't have those feelings. There's no way in hell that makes sense for the characters as they were up until around 1650, but that's the way things
apparently are right now.
I'd accept it if they admitted to having those feelings but that they weren't in a position to do anything about it, or that it's become to awkward to do anything about it... or pretty much anything that doesn't suggest they were replaced by lookalikes at some point in the recent past.
I'm not so crazy that I expect the author to go along with my wishes, but I would prefer if their current actions could make sense in light of their history. I don't think that's too much to hope for.