The tension between wanting freedom and the natural human desire for belonging. The Theme:

In the end, Sarah and Alex worked through their issues, and their relationship emerged stronger. Emily met someone new, someone who shared her love of adventure and appreciated her for who she was. And Rachel and Jamie's relationship continued to grow, a testament to the power of slow-burning love.

The proper article for the phrase "three girls having relationships and romantic storylines" depends on whether you are referring to a specific group or a general concept: