Marry the Alpha, Ditching My Mate of Ten Years

I'm about to get married under the witness of the Goddess of the Moon. However, Carl Erickson, my partner of ten years, doesn't know it yet. Carl has recently hired a new assistant—Ivy Keating. Everyone in the wolf pack knows something amorous is going on between them; they frequently "discuss work" until the wee hours of the night. A celebration that's supposed to be for our anniversary turns into Ivy's birthday celebration. Carl orders a ten-layer mango cream cake for the celebration—it's Ivy's favorite. They get cream everywhere, but they've forgotten I'm seriously allergic to mangoes. A regular mango is as lethal to me as wolf venom is. I'm taken away by an ambulance to be rescued, and I'm alone when I wake up. Carl is still at the party, celebrating Ivy's birthday. My wolf growls unhappily, and my love for Carl dies. It's then that I agree to the marriage my family has arranged for me. I'm going to marry a true Alpha.