I'm Not Terminally Ill!

I suddenly found myself inside a reverse harem novel. Of course, not as the saintly heroine, but as 'Louisa Blake,' the fiancée of the male lead 1 and a future villainess. But so what? Whether the male leads meet the heroine or not, if I just stay still and let things flow, I'll get my engagement broken off and go my own way. However... I ended up coughing up blood faster than the plot progressed, and my family, who happened to see it, misunderstood that I was terminally ill. Even the male lead! It's not because I'm sick, but somehow the situation is getting more and more twisted. *** "I will never like you." He said the words, but then looked at her with an uncomfortable face. As...