When Debbi met Steve in 2011, she believed she had found the love of her life. However, her extreme jealousy and the lengths she’s gone to in order to ensure his fidelity have left many shocked.

Jealousy can be a powerful and destructive force in relationships. For most, it’s a fleeting feeling that passes, but for some, it becomes an all-consuming obsession.

One woman’s extreme measures to combat her jealousy have led her to a controversial and highly scrutinized practice: making her husband take a lie detector test every time he comes home.

Debbi and Steve Wood have been together since 2011. While living in her native Scotland, Debbi met Steve through a mutual friend on Facebook. After several weeks of exchanging messages, she traveled to London for their first date.

She recalled, “I knew we were meant to be a couple when we shared our first kiss under London Bridge. I didn’t mean to fall in love again after my last relationship, but Steve stole my heart.” Their relationship quickly became serious, leading to plans to move in together and eventually get married.