Does anyone have a manga where the toxic relationship is successful????

I really thought that this would be a manga where they both end up together even though they are both so twisted. I was looking forward to that toxic relation ending in happiness but instead Clark kills Alex... no matter how many psychologically toxic bl I've read, they have always ended with both characters apart. DOES ANYONE KNOW OF A MANGA WHERE ITS A SUCESSFUL TOXIC RELATIONSHIP!!!!! Ik its messed up and u wouldnt normally encourage a toxic relationship but I just really wanna read something like that. I read killing stalking and the relationship wasnt successful then I read Obey Me and it was another failure. Can someone pleaseeeeee just make a sucessful psychologically toxic relationship!!!!!!!!