i have happy ending ones (bc mc gets reborn, usually) but if ur looking for BE ones i dont have sorry. the obsessive shou moves on this is a wife chasing one, where mc commits suicide bc he believed that ml was a scum man who used him, and ml went against a bunch of promises he made to mc. i personally thought mc was a little too harsh, but many people dont agree with that idk. Spoiler both mc and ml are reborn and esp after mc finds out that ml is reborn, mc goes out of his way to punish ml despite knowing to some level that it was a misunderstanding not sure if youd want these ones as the tone is generally fluffier, but here the tyrant's belove d empress mc drinks poisoned wine that was meant for him and ml (emperor). ml somewhat blames himself because their marriage was arranged bc he asked the emperor for it (so it was also forced to a certain level), but this is only depicted in the first few chapters after cultivating with the enemy. [get the password from cg discord] mc waits 300 years for the ml before getting murdered, then goes back 200 years, i think. the reason its kinda more ml's fault is that Spoiler mc had a really strong cultivation root, that he ripped out because ml wanted to go to the heavens or something to become a god, and it would be easier if mc gave him his root. its less angsty and has more a pining vibe because Spoiler: spoiler that you can guess from the get go ml lost his memories and has a different name, but falls in love with mc and gets really bitter that mc is in love with a trash man who probably forgot about him even though it literally is him lol
Strategy to Capture that Scum Gong maybe? Spoiler It's a QT novel. The willingly MC plans his death in every arc, and makes it such that his death is somehow related to the ML and the ML regrets his previous choices that led to MC's "death". While each arc is a BE, the ending is a HE.
In Dongfang Bubai's Reborn Yang Lianting the mc is persuaded into leading their enemies to the ml for a final confrontation. The mc is tortured to distract the ml during the fight and they are both killed. This is a rebirth novel with happy ending. But do yourself a favor and read the tags/reviews first!