This paper deals with the topic of the use of social networks as a form of monitoring partners in intimate relationships. The aim of this study is to examine the opinions of social network users about these networks and intimate relationships. The paper examined more detailed the relationship between social networks, intimate relationships, surveillance and jealousy, also additional variables that proved to be interesting for the topic that is presented. At first the theoretical part of the paper problematized the approach of the network society and the sociology of emotions in order to describe society in the digital age and explain the basis of the research, which was set up for the purpose of examining the young Croatian population about their experiences of social networks in relation to intimate relationships, and about their use of social networks for the purpose of monitoring partners. Furthermore, in the methodological part of the paper, the results of the analysis of an appropriate sample of the online survey of partner relationships on social networks (N=223) conducted in 2022 among the younger population in Croatia are presented. The results of the analysis showed that there is a statistically significant difference in supervision, negative experiences of interruptions that are aggravated by social networks and general negative experiences on networks with regard to the intimate status of the respondents. Also, a statistically significant connection was established between jealousy and surveillance on social networks and general negative experiences on social networks. Detailed analyzes led to the conclusion that the people who show the most tendency to monitor their partners on social networks are those who are in a relationship that is not yet called intimate relationship, and the least those who are single. Also, the obtained results showed that more jealous respondents showed a greater tendency towards surveillance and a negative experience on social networks. Sending explicit content to people with whom they have not previously come into contact is more often done by male respondents, and people who are in an intimate relationship with one person are more inclined to send explicit content to their partner than those who are not in a relationship at all. It is important to point out that respondents who had a previous negative experience that caused them to start monitoring partners are also those who are more jealous.