When we get married, we don’t usually think about things like cheating and lies from our partners. But life can surprise us, and sometimes we meet the wrong person, which only makes us stronger. This is the story of a 35-year-old woman who wanted to know if her husband was being faithful. In the end, her body’s reaction to a kiss helped her find out the truth.

Aubrey and Mark had always had a rocky relationship.

Aubrey, 35, wrote a letter to share her real-life story, which sounds like something out of a movie. She said she feels positive about the situation now and finally feels free.

For 2 years, Aubrey had doubts about her husband, Mark, but couldn’t prove anything. When she finally discovered the truth, her life became more peaceful, even though what she found out was very painful.

Aubrey wrote, “Hi Bright Side! I want to tell you how my own body gave me the clue to figure out what my husband had been doing for the past 2 years. Mark and I have been married for 10 years. He was my first love. Mark has always been a difficult person, very secretive, but I loved him and trusted him completely.

“I never doubted him until recently, when Mark started acting strange. There were signs I couldn’t ignore. After knowing him for over 10 years, I could tell something was very different about him.”

Aubrey wrote, “I started thinking my husband had been cheating for the past 2 years, but I couldn’t prove it. He was hiding it so well.”

“One day, he came home from work, and I kissed him like always. But right after the kiss, I was shocked—I suddenly started throwing up. About 30 minutes later, I started sneezing a lot.”

“At first, I didn’t connect the kiss to my symptoms. But I didn’t have a serious illness. It turned out I was having an allergic reaction to my husband’s mistress.”

Aubrey explained, “Later that night, I got a rash, and with all the other symptoms, I realized it was an allergy. I’m allergic to cinnamon, and my whole family, including Mark, knows that. We never had anything with cinnamon in our house. Mark never liked cinnamon either, so it was easy to keep our home free from it.”

“Cinnamon is the only thing I’m very allergic to, and I wondered where it came from. Then I connected the kiss and the allergy. My husband must have eaten something with cinnamon. But why would he, since he knows about my allergy and doesn’t like it? That’s when I started digging.

Aubrey said, “I was now sure Mark was cheating. I remembered a small bakery near his office and the beautiful woman who owned it. I had passed by it many times when visiting him at work and had seen her smiling and talking to customers.”

“Cinnamon, bakery, and the bakery owner—all the pieces came together. That’s when I confronted my husband. I asked him directly if he was having an affair, and he admitted it with a shaky voice. He asked how I found out, and I told him about my little investigation.”

“It turned out he had visited his mistress at her bakery that day, and she had him try some new cinnamon rolls she was adding to the menu. He ate them to please her, then came home and kissed me.”

Aubrey wrote, “My story might sound sad, but I feel relieved, happy, and free now that I know the truth. I spent 2 years full of doubt, unable to prove anything or leave my cheating husband. Now, I’m free and ready for a new love in my life, one where I don’t have to play detective again. Wish me luck!