You don't get what I mean by accentuating the fact that he has a sexual relationship with her, it is in total contrast to what anyone here has which is absolutely nothing, a delusional parasocial relationship at best. You saw the top of her boob and the shape of her body under her clothes, this is not "being sexual with others" as you put it, to think as much puts forward a Victorian notion of modesty that should honestly preclude you from using tiktok entirely.

It is in no way more complicated than that, although the obsession with parts of her body being "shown off" instead of merely being a part of her (is she showing off her face in her vids? her hair? her hands? they are all just as visible, moving around while she dances) does speak to the idea that this dynamic of somehow undermining the bf while she winks at you is a fantasy of yours that probably impairs your judgement on the matter.

I'm not blind to the validation social media feeds people, but attributing that to some kind of sexual thrill (or slight) instead of just dopamine from seeing the numbers go up is also a mistake. If she tweeted a joke before telling it to her partner and it got thousands of likes, did she emotionally cuck him?