Seconding Maid's Revenge - a mini-series, tons of longing and yearning from the ML here. It's technically got a childhood crush plotline but it's not super relevant to the overall story. I honestly couldn't tell what era this was supposed to be set in, so it might (?) be historical, but again the worldbuilding is not at all relevant to the plot. I would argue however that it IS at least somewhat toxic since the ML touches the FL without her consent several times and there's also an instance of sexual assault from the SML.
Park Seo Joon in Fight for My Way does a lot of yearning - this is more lighthearted friends to lovers story
Seconding Before We Get Married - there's also The Smile Has Left Your Eyes and Cruel Romance and Why Her, all melodramas with absolutely obsessed MLs who will do anything to get and keep their FL
If you haven't already seen it, in Healer the ML practically drives himself crazy, he wants the FL so bad
I haven't seen Summer's Desire but have heard that both male leads are obsessive and possessive to the max, with tons of jealousy and longing.
In Cunning Single Lady, they were married and divorced, meet again as enemies but he eventually falls for her again and regrets the breakup, and he longs for her pretty hard
There's also My Secret Romance, where they have a one-night stand and she runs out on him. Once they meet again, he pursues her hard. Definitely matches the "misuses his power to get her" trope you mentioned.
I think most of the dramas I know of that closely match what you described are historical. I can recommend those if you're interested but since you said you don't watch historical I won't include them here.