As much as it pains me to say this I might understand where she's coming from. Many, many years ago I was in a triad w/ my boyfriend & his wife where we basically shared him. Any contact between she and I was pretty accidental because 1) she didn't come within several lightyears of getting my motor running even in the heat of passion and 2) while I could admit to myself that there were females who made me hot & bothered I would never have admitted it publicly nor would I have dared to act on it. Of course this was back in the 80s when bisexuality was even more stigmatized than it is today.

So maybe w/ LKH it's a combo of her trying to be all darkity dark & the edgiest of them all as well as coming to terms w/ being attracted to both women and men. Doing the latter when you're in your forties & have sworn on a stack of bibles your whole life that you're straight is not an easy thing to do. But to be honest I think in her case it's more schtick than substance but I have to give her at least the tiniest benefit of the doubt in case it isn't.