When My Girlfriend Fell for the Male Lead of a Tragic Romance

My girlfriend and I were sent to another world to complete a mission. But she fell in love at first sight with the male lead of a tragic romance and insisted on staying there. I had no choice but to knock her out in secret and drag her home by force. On our wedding night, she deliberately spiked my drink with sleeping pills, and I drowned in the bathtub. When I opened my eyes again, I let go without hesitation and left my girlfriend to fend for herself.