Until the Duke begins Unrequited Love

When transmigrating into a villainess, the number one survival rule to follow is ‘Do not fall in love with the male lead from the original novel!’ I was trying my best to survive… but the male leads are fiercely getting in the way. “Do you know what I went through just to marry you?” It’s not poison; it’s a marriage proposal. “Even though you’ll never love me, I still love you.” It’s not a threat; it’s a confession. “If you won’t kiss me, don’t come any closer.” It’s not a blade; it’s lips. Can I really not fall in love? I did. Moreover, it’s damn unrequited love. Let go, you see; that person fell for me first, okay?