Casual relationship --> Relación ocasional (that one's OK)
Open relationship --> Matrimonio abierto (that means open marriage, it should be "Relación abierta")
Monogamous relationship --> Matrimonio (why?? Should be "Relación monógama")
![](http://static.yuvutu.com/web/includes/custom_files/images/120x60_RTA_b.png?r=04)
Tous les participants ont 18 ans ou plus.