No, most of the events are created in such a way that they are completely safe, and equally valuable everyone. We always start with connecting to ourselves before connecting to others and almost all meditations can also be done individually.
At every event there are assistants that are there, especially to work with you if your are single or would like to rotate partners. We encourage you throughout every event to see the beauty in everyone and everything.
If you join as a (fixed) couple, it is possible to work together exclusively.
Also, I believe that if only one person out of the couple joins an event, already big transformations can be seen in the relationship.