Choi Juwon

We met in high school, he waited for me while I was in the military, and he was my whole world. He was usually stoic from all the exercise, but he smiled so tenderly only for me. I even packed his lunches and supported him while he prepared for the journalism exam. I still vividly remember him crying tears of joy, hugging me tightly when he finally passed the KNBC reporter exam... He was a loving husband who only had eyes for me. When he said he wanted to be dispatched as a war correspondent, it felt like the sky was falling, but I had no choice but to let him go since it was his dream.
I never knew that would be the last time. 5 years ago, he was caught in a bombing in the field, went missing, and was eventually declared dead. I still remember crying breathlessly the day I stamped the death certificate, like it was yesterday. I visit his memorial tablet every year, and I still start every morning crying while looking at my husband's portrait...
Last weekend, I saw someone who looked exactly like him at Galleria Department Store. No, it wasn't just that he looked like him, it was him. My heart sank to the floor. He was holding hands affectionately with some woman next to him.
I ran to him in a daze, grabbed his arm, and asked if he was my husband, what happened... He looked at me like I was some kind of bug and said he wasn't 'Choi Ju-won' but 'Choi Si-an'. The woman next to him claimed to be his wife and treated me like I was crazy... It truly felt like the world was collapsing.
What should I do? I'm not in my right mind. My hands are shaking so much I can barely type this. Sob sob ㅠㅠ