At first blush, casual dating can seem like an effortless way to forge new connections and ease loneliness without having to get too attached. What if you take a short trip together? Serious relationships usually involve:. Many people commit to one partner exclusively or monogamously once things get serious. But you can develop serious relationships even if you practice nonmonogamy. Polyamorous dating can involve both casual and serious relationships. Many polyamorous people maintain a serious, committed relationship with one person their primary partner and see other partners casually. Others might have a few committed partners, many casual attachments, or some other combination of relationships.