That Bo puts up with Dyson strikes me as evidence for my take, that emotionally she is stuck at the level of a not too mature high school student. And show has specifically said that an exclusive relationship with Dyson, at least one that provides Bo with the energy she needs for good health is bad for Dyson's health. To keep them both in good physical shape, she needs to see other people.

As to coincidence, maybe Saskia is not a coincidence but a plot point. The whole "say my name bitch" implies to me that she is at least a known force, which I suspect will end up with her being more than a powerful player who happened to run into Bo. Maybe it was no accident that she ran into Bo. Maybe she sought her out to try to and shape the direction Bo's life was taking for some reason. To take the speculation in an even more unsupported direction, maybe she keeps doing dark things that alienate Bo because she is trying to turn Bo to the dark side, and intended that from the beginning - just not getting the results she wanted, because she is not actually a great emotional manipulator when she can't use sex. I admit, not only unsupported, but kind of a stretch even for this show. But there do seem to be some hints (not evidence, just really faint hints) that this is what is going on.

You know, this is another extreme May-December relationship, where the guy has decades if not centuries over the woman. Can anyone remind me of examples where the woman has a supernatural amount of years over the guy?

Darla was older than Angel, and Dru was older than Spike, but the shows focussed more on Angel and Spike with Buffy, not their respective sires. I'm blanking on other examples.

Interesting that the siren is a) male and b) not sexy. I can see that they wouldn't go with the traditionally sexy siren since the main character is a succubus, and that would be confusing and distracting, but what you're left with is a bit weird, powers wise.

Is it? That hadn't occurred to me. He's got the irresistible song. I kind of always figured that the sexiness of most artistic representations of sirens was more constructed in the mind of the person hearing the song than a real attribute of the siren.

I kind of feel the same way about Bo's supposed sexiness - I'm willing to believe the characters under her sway find her all kinds of alluring, because magic, but I can't really buy it if she's not using her power.

Catherine (I don't remember how she spells it) and the Salvatores back in the day.

Ruby and Sam Winchester, sort of, maybe.

Was Arwen older than Aragorn? I can't remember, but I don't think so.

I guess technically Suren/Aidan on Being Human (US), she's supposed to be 900 years old, though the dynamics within the relationship really don't seem to reflect that.

Oh, Anya and Xander, of course.

He's got the irresistible song

The examples that stick in my head of him using it seem to be as a weapon, and the one example I know from mythology is the song used to attract people to them. Has he done that on the show and I missed/forgot it?

I can't really buy it if she's not using her power

I do think it's the director's responsibility to show it to the viewer in some way other than just other people falling for it, though. If it were a side character, it could be a kind of joke that here they are, not particularly sexy, yet people fall for them without fail, but with the main character, either you say out loud that you wouldn't think she'd attract all these people but does, or you get the audience to feel sexed up too, somehow.

*I* think. I feel too WTF all the time when I think Kenzie is sexier than she is, and doesn't really get more play. Also, I feel like they go far enough with her that I'm supposed to feel she's sexy, but it's just not coalescing for me.

On Being Human, either country, there must be a point at which the pull of the door becomes irresistible, right? Because we keep seeing ghosts near our protagonists asking them "What is that???" What if they weren't around? Would they not work out they were supposed to walk through, and just go on and do something else? That's a bit unfair...

Of all those December/May romances...they're not painted as tragically romantic as the reverse, are they, in general?

Arwen is about 300 years older than Aragorn.

Has he done that on the show and I missed/forgot it?

I can remember a specific scene where he walked out of somewhere singing and the person they were there to capture or whatever just followed him helplessly. Can't remember the details, though.

To be clear, I think I'm supposed to find Bo generally sexy, but I don't. It's a weakness in the show, for me.

I think in the relationships where women have more centuries there's less of a sense that she has accumulated wisdom and guidance to offer her younger consort than when it's older men. Considering the ones I've thought of. With the possible exception of Catherine and the Salvatore bros. I'm not a good judge of what is tragically romantic, I don't think; I can't say whether that, specifically, is different but there are definitely differences.

I have the sense that doors become irresistible but I don't know where I'm getting that from. Like it was a struggle for Sally and Annie each to not go through their doors? I could be remembering that wrong. I'm super annoyed at Being Human in general right now so I'm not thinking too deeply about it.

I think I'm supposed to find Bo generally sexy, but I don't

Yeah. I think they cast a pretty, but uncharismatic woman in the role. They'd have been better off, in my estimation going with the latter over the former.

Of course, as someone once pointed out, Edward Cullen, after centuries of living, chose to be a high school student.

As they say, that boy's not right.