Looking at the dream journals and relationship activity logs of 61 people who are coupled up, researchers from the University of Maryland found that dreams about infidelity, jealousy and other “bad” relationship behavior were associated with greater relationship conflict and reduced intimacy in subsequent days, according to the Vancouver Sun.

“A lot of people don’t pay attention to their dreams and are unaware of the impact they have on their state of mind,” the Huffington Post quoted Dylan Selterman, the study’s lead author and a psychology lecturer at the University of Maryland as saying.