Maybe she finally got herself a sassy gay best friend who read her the riot act about her historical perspective with regard to letting her admittedly bisexual men have a bit of fun with one another. Or maybe they let her watch and she found that the world didn't end, the sky didn't collapse in on itself and oh wow, that's actually kinda hot...now ALL my male characters will have to get it on together.
I would love to know whether this is true or not. It would certainly improve the Merry Gentry series too, imho. ;) But then I'm biased like that.