She Tore up the Divorce Agreement

On our wedding anniversary, I personally made my husband's "favorite" tiramisu. But he gently reminded: "Weiwei, you forgot, I have a nut allergy." But I clearly remember that it was because of his tiramisu sprinkled with chopped hazelnuts that he became attached to me. That night, I found a whole box of unopened anti-allergy medicine in a secret room in his study, and an ID card that was completely different from the one on our marriage certificate. In a flash, I remembered my predecessor who passed away in an "accident" a year ago - his most hated business rival, who was also severely allergic to nuts. Who is my husband?