Returning After He Chose His Mistress

I've been married to my husband, Kaison, for three years. He never spent any anniversaries with me. Instead, he traveled to countless countries with his idealized love, Alexis. On my birthday, he once again abandoned me, saying, "I have a business trip for a week. Be good and wait for me to come back." I silently watched him leave, knowing this trip was just an excuse to spend time with Alexis. He thought I would quietly accept it, relying on my calm demeanor. But this time, he was unaware of my plan. By the time he returned, I'd already be on a plane, leaving the country for a fresh start. Two months ago, I kept asking Kaison for a special surprise for my birthday. He agreed, and I was filled with anticipation.