OBJECTIVES:  Many conflicts can be observed in relationships, the poor management of which can cause the relationships to end. The objective of our study is to examine young adult romantic relationships and to explore what factors affect them. METHODS:  The participants were full-time BSc students at Hungarian universities (University of Pécs, Semmelweis University, Pázmány Péter Catholic University) and their age ranged between 18 and 26 years (N=362). They were chosen for the quantitative, cross-sectional, descriptive research by convenience sampling. The anonym, self-completion questionnaire was delivered to participants via Internet. For data analysis SPSS v 13 was used. Besides descriptive statistics (average, variability, frequency), mathematical statistics (χ test, Fisher's Exact Test) were also used (p<0.05). RESULTS:  55.24% of the students had 1 to 4 one-night stands, 30.93% had 5 or more and only 13.81% have never had one-night stands. Those who meet their partner every day judge the quality of their relationship to be better (p<0.01). Couples that are having a shared view of their future think of breaking up more rarely (p<0.01). Those who met their partner in a club have had more one-night stands than the others (p<0.01). Couples with poor conflict resolution skills think of ending their relationship more often than those who apply proper conflict resolution techniques (p<0.01). In case of relationship problems, those couples who try to resolve them together are more successful than those who rely on external help (p<0.01). CONCLUSIONS:  It is a message for parents and also for health visitors that young adults frequently switch their partners; therefore more emphasis should be put on sexual education, especially on its affective side. It is not enough to focus only on the somatic factors. It is necessary to extend the topics of school health education with that of successful conflict resolution techniques.