Jealous of your boyfriend’s endless poke war with his “work friend”? That jealousy might be the beginning of the end, according to a new study that says excessive Facebook use can wreak havoc on romantic relationships. The study, which surveyed Facebook users ages 18 to 82, found that individuals who constantly checked their newsfeeds were more prone to Facebook-induced conflict, like arguments about that boy who likes all of your photos. Researchers also found that Facebook use can lead to emotional and in-real-life cheating, since the social network makes it so easy to connect with people from one’s past. Here’s the kicker: the findings applied only to couples who had been in relationships for three years or less, which suggests less mature relationships are particularly at risk.