The Spiritual Saint Is Having Sex with Others Behind My Back

There are ten precepts in spiritual practice, the first of which is to avoid lust. My wife is a spiritual saint. After five years of marriage, she has always been very cold to me. In her words, when two people are together, it does not mean that you and I are in love. It is more meaningful to be as plain as water and to respect each other as guests. Although I don't entirely agree, I feel that intimacy between husband and wife cannot be used as a measure of love. And I believe that as we get along for a long time, she will slowly change under my influence. Even if she is a high-ranking ice and snow goddess, there will always be a day when she will be transformed by me, right? At least she loves me and I love her, that's enough. But today, I discovered that I might be wrong.