Becky's change from sub to domme is an interesting one that I don't think we've dissected properly yet.
9 months ago, Becky couldn't top without crying.
But she nobly rose to the occasion to "mommy dom several people."
Setting aside how insanely weird and freaky it is for a new mom to also want to "mommy dom" anyone (which I'm sure we could all write a ten-page essay about), I want to discuss this changeover in a more general sense.
Typical BDSM theory is that people engage in these activities in the bedroom to get something they don't get in real life. Hence the stereotype of the Type A businessman/businesswoman who goes to get tied up and whipped at the BDSM club on the weekends: they feel like control has become a burden and a stressor, so they go get beaten. In reality, a lot of subs are just abuse victims who think all they have to offer people is their existence as a willing victim.
I am very sure that Becky has used the "submissive" lure like an anglerfish, transforming weak males with a dominance fetish into shriveled up little husks that stick to her and have no choice but to follow her by topping from the bottom.
But now the mask is coming off, and Becky's asserting that she is the person in control. If she hadn't been playing the uwu innocent sub who could never ever dominate anyone, this probably would be meaningless for her relationships. But I have no doubt that this change was part of what made Daniel back off, and it could very easily cause Jack to do the same thing. Jack's coom sessions are all about tight virgins and pregnant teens. He likes them young, dumb, and you know the rest. Mommy dommy is not his deal. Becky thinking that acting like a nagging mom or playing at punishment is now sexy is going to drive him away in a way that few other things could.
I'm sure that as intolerable as Becky's "I'm just a sad innocent victim" stuff was before, it's probably even stupider and worse now that she goes from ordering people around shittily and disrespectfully to, when called out on it, talking about how it's so hard for her to ever give orders or be mean and that you should praise her and clap like a seal when she's cruel because it's very liberating to her newfound sexuality.
I suspect that once Jackson finds employment again (which he will, eventually), he'll trade Becky in for a
significantly younger girlfriend, and the age gap will be something Becky snarls about for the rest of her life (yes, even though she's spent months bragging about the age gap in her relationship, because it's different when it's a woman...I mean, a nonbinary trans man...as the older person).