Bring back angst and yearning

A princess is transported back in time after a rebellion is led against the imperial family. She believes the head of the homoluci (slave class) killed her. However he is obsessed with her and led the rebellion for her. She has no idea. She attempts to change the system for the better whilst he serves by her side.

Dark. ML does not mind betraying his people but will not betray the FL. He tries to tracks her down ( she hates him) and then marries her in order to protect her from the ruling elites. Unrequited love.

ML is obssesed with FL and doesnt give up searching for her for 5 years even after she is declared dead. He defies the Queen and makes enemies in order to be with his wife. She is scared and thinks he does not really love her and tried to have her killed not knowing how much he adores her.

Set in a beast second characteristics world. The ML suffers form the curse of the Baskervilles and can only fall in love once and obsessively. He makes his brother put on lavish parties so that he can see her and suffers alone for months to train and be the kind of person she could fall for.

I am not please with the lack of consent in some places and you can argue that the age gap when they met is very creepy.
The top emperor is obsessed with a bottom noble warrior, initially he supports his dreams from afar and protects him. However he becomes more overt. The bottom has no idea and struggles with his own unrequited feelings as he believes the top is in love with his sister.

Bratty lady acts how she wants. The ML is so in love that he takes her moods and adores her consistently.

King falls in love with the pope. King believes that the pope has multiple partners but is so in love he tries everything to persuade him to marry and be with him. The pope does not have multiple partners but believes the king is not interested and tries to hide his pregnancy. The king loves and protects him even thinking the child belongs to another man.

Ancient European world. Head of the revolution has been secretly obsessed with princess psyche who has been locked in a tower and is a man dressed as a woman. Despite his army demanding Psyches death he marries and protect him even when he tries to kill and betray him.

Very complicated feelings about this manga. It is long and not simple at all. It examines class dynamics and you end up on an emotional roller-coaster when it comes to the ML ( who you hate for ages). He loves her from afar after ruining everything and keeps tabs on her progress. The story occurs during a war which adds to the emotional tension.

Set in a post apocalypse world. Captain of the special espers yearns and becomes possessive of a junior scientist. He has no idea and think the Captain is odd.