It's funny when you're a kid, and all the girls fancy these boyband guys, and you sort of think they must have to be fairly cool to get all these girls (even though, as a lad, you despise the music and pretty much everything it stands for).
Then, you see them on a show like this, and you realise they are actually still boys themselves, stuck in this sort of freakish, perma youth. Lee is a grown man, but let's face it, he acts like a teenager

He's dumb, obsessed with girls (stupid ones), and he has no idea what he is doing with anyone- how to talk to anyone, how to explain himself, how to have a relationship... he relies entirely on his boyband persona, and probably always has, which is why he has never grown up.
Depressingly, it still works on glamour girl bimbo's, desperate for fame, and of a similar mental age- we might as well face it, they were made for each other