@A_12 Well this is going to be a long one and I had to skim through every spoiler I read and this is just the summary. And I mi7 not be able to write more spoilers in one go because the site had made done changes I guess. And a user can only post a certain amount of comments in an hour.
Spoiler!
This manga/novel is all about the gaslighting male lead trying to get redemption for killing his companion/consort. He is the one who really sent the scarf to her to hang herself.
Manga is a little different from the novel. Novel states that the MC knew that ML also turned back time and it is not the first time they met. And instead of fainting like in ch.5 of the manga, MC actually tried to commit suicide again by jumping off somewhere upon the revelation that ML turned back time.While Terrell is scheming that kinda cr** about taking the ML’s mate, the 3rd tiger bro (Rhodes Mcqueen) from the tribe decide to ambush Rottingen. He ambushed Rottingen when the MC and Denise were out riding horses. Unfortunately, ML is not there to protect them, and they got hurt. Denise got her arm broken, and MC got shot in the leg, and got after that, mauled by the 3rd tiger brother. Terrell appears and gets shocked that the 3rd tiger bro is ruining his plans and whacked the 3rd tiger bro on MC’s behalf. Terrell understands that he cannot defeat the black dragon now and thinks about how to get out of this situation when the ML appear. In the meantime, the ML realized MC had gotten into danger and quickly disappeared from wherever he is and appeared by her side. He saw MC seriously injured and protecting the white dragon’s daughter and sees red. Terrell make a deal with the ML to abandon the 3rd tiger bro and everybody there who attacked MC and Denise and ran away himself.
I like to post spoilers for the stories I find interesting because I don't have much time to read novel due to busy schedule
you will find me in most romantic historical manhwa comment sections 
you will find me in most romantic historical manhwa comment sections