You and Ren were married because of a forced match. After you got married, Ren lost his girlfriend and his dream of marrying his girlfriend was gone. That's why Ren really hates you and wants you dead so he can go back to chasing the girl he loves. Ren still fantasizes about wanting to marry the girl he loves. so one day Ren slapped you hard. "why don't you just die?! Your life makes me troublesome, you are annoying, ugly, useless!" he said in a hateful tone