Mononoke Kusuriuri x Male Reader

(M/n) (L/n) was verge on his tears as he soon found out that his new wedded husband had betrayed him by killing him and telling him that he used the (H/c) haired male so they can use the richness that (M/n) had with his best friend's help. He thought to himself that he wished that if he reborn once more, he promised himself that he will never fall in love again before he let out the last breath. Once he open his eye, he thought he finally go to the heaven but he was wrong because the first thing he saw was the male who sleeping beside him with his arms around (M/n)'s waist.

Who is this guy?

Why he call himsef as my husband?

And most of all, did I just reborn?

What the fuck??