Let's try this again

maybe this..
https://www.mangago.zone/read-manga/if_that_s_the_case_then_i_ll_do_it/

define the relationship

You're looking for a power imbalance between the two characters, but the one who is in the higher position is infatuated with the person who is in the lower position. Or at least, that's what I got from your question. I think these might fit what you're looking for. (But correct me if I'm wrong. I have reccs for almost anything.)

https://www.mangago.zone/read-manga/a_proxy_painter/

https://www.mangago.zone/read-manga/barbarities/

https://www.mangago.zone/read-manga/the_foul/

https://www.mangago.zone/read-manga/cry_me_a_river/

(All of these are BLs btw)

I mean they have a lot on their plate at all times, but with their SO they can relax and finally be pampered and taken care of. And they let themselves have that moment and their partner just enjoy spoiling them out of genuine affection.
It could be a boss or a leader, but the same goes for parents and older siblings who are too busy being responsible for others to be able to take a break.

Oh, I get it. Then, these might be more suited for your tastes:

https://www.mangago.zone/read-manga/lie_cry_like/ (actor x make-up artist)

https://www.mangago.zone/read-manga/the_last_step_on_the_way/ (college students)

https://www.mangago.zone/read-manga/eyes_clouded_by_the_tiger/ (Master x servant)

https://www.mangago.zone/read-manga/the_prefect_s_private_garden_8232/ (commoner x popular student)

https://www.mangago.zone/read-manga/kill_the_villainess/ (master x servant)

https://www.mangago.zone/read-manga/naked_color/ (artist x rich nepo baby)

They all have the troupe where they need someone to rely on and their partner is the perfect person to do so. Hopefully you find something you like