OVer the years I read a lot about mismatched libidos and I do agree that young kids kill it often on both sides, and that there are ups and downs and times when you kind of are out of sync in any good relationship, and some people naturally want it more than others. However, I am suspicious of the idea of it being just about libido, as though that is simply a chemical thing in isolation. Surely it's a barometer for other things: how close you are with your dp at other levels e.g. emotionally and intellectually. How deeply you want to share your spare time and precious moments of relaxation with them rather than flop on your own (e.g. after a shitty week and feeling exhausted, fooling around with dp is genuinely something I look forward to as a treat!). When those other things are missing, it's like trying to go from 0-100 in three seconds on a cold engine to think about 'initiating sex'. It's skipping all the warm-up and the engineering team's work in the pits before you go out on the track. (I am not sure why I've ended up on a motor racing analogy here).
This analysis is down to my personal baggage (being upfront): I am female, was the 'higher libido' partner in previous marriage, and felt over many years like a repulsive, unattractive human being (I'm not) and a freak for wanting sex, missing it, and being miserable without it. My point is I don't think it is just about the woman controlling it per se, it's about the higher-libido person always being more vulnerable to rejection, perhaps because this is their way of showing someone they care, this is their way of connecting with someone and feeling close to them and feeling loved back by them. It's not like that for everyone but it is for me. That doesn't mean it isn't hard for the other person, I realise you must always feel bad if you just don't want to give what the other person needs, but I feel there must be something more emotional underlying it.
Turned out in our case, after many years of head wrecking, reading around the subject, me actually considering a long term affair numerous times, but not doing it, and then me leaving (lack of sex among other reasons), that, as I feared, he simply wasn't attracted to me for most of the time we were together.