Dreaming of committing adultery is an expression of repressed subconscious sexual desires considered indecent. It might be an indication that you need to express your impulses more often and let yourself enjoy your fantasies within the limits of your established relashionship with your partner. When dreaming of your partner committing adultery, it might indicate fears, self low esteem, and weaknesses in your relationship. Take some time, examine the reasons for your insecurity and try to trust in yourself and in your endless potential and richness as a human being.