Your teen will learn about their relationship with you through their relationship with their sexual or intimate partners. A teen will repeat elements of their negative parent relationship even without meaning to do this. When your teen dates they reveal their possible choices as a lifetime mate. Love is blind to the person in the relationship, but to their supportive group love has fewer blinders. This enables them to see patterns or similarities that may mimic the one they have with their less than supportive parent. It turns out this is the way we work out those parental relationships. This is how a teen ends up dating their father, mother or whoever their caretaker was.
If their father was supportive and a positive influence in their life this may not be such a bad thing, but if your teen’s parent was abusive, or somehow limited the emotional growth of your teen, then you might want to help them recognize these relationships before they become too serious and cause a lifetime of heartache.