My Husband was Switched

I was reincarnated into a cheating novel.
And not just any character, but into the body of the villainess who turned evil after her husband has an affair!
‘Ah, my life.’
I had absolutely no desire to get between the male lead (my husband) and the female lead (my sister).
In this situation, I need to avoid the male lead and marry another man.
According to the information my sister gave me about the man I’m supposed to marry, he’s handsome, from a count’s family, and has a great body.
After some twists and turns, I finally had my wedding night.
But when I opened my eyes, my partner was Cedric, the original husband I wanted so desperately to avoid?!
“This can’t be happening!”
Why are you here?!
…The male lead who was supposed to marry the female lead became my husband instead.
Give me back my new husband!