Healthy vs. Unhealthy Relationships. Relationships that occur in the teen years may affect dating relationships later in life. The lessons teens learn today about. I expect we have all seen dating relationships go wrong. We have all seen people move from unwise and unhealthy dating relationships into. The Date Mix .. And what makes it a healthy relationship as opposed to unhealthy? Not all of Sometimes the things that make a relationship unhealthy are the things you don't notice at first or don't even know to look out for.