"Betrayal's Hidden Heart"

Prompt: My Alpha mate booked me a “thoughtful” vacation, claiming I needed rest. The departure date? Two days later—on the day he married his Beta mistress. I called my mom. “I’ll accept the arranged marriage.” On my wedding day, our convoys crossed. When the car window lowered, our eyes met. “Rowena… how could it be you?” His voice shook.. But this should be slow burn. Rowena should know but she keeps the fact that she’s accepting an arranged marriage private. This arranged marriage is to the pack alpha of another pack. He’s very viscous and mean but he’s known Rowena his entire life so he’s not mean to her. In the past she was blinded by the alpha and missed her chance with the other pack alpha or so she thought! Please please make it slow burn like start it at the betrayal arc where the alpha is spending too much time with his beta mistress Lillian and he starts mistreating Rowena