Grey's Anatomy Relationship Update: Who Broke Up in the Finale?

It's always been a bumpy road for Alex and Jo, and Alex's promotion to Meredith's "person" has only made things tougher. However, when Mere asks if she can move back into the old house, it forces Jo and Alex to really evaluate where their relationship stands. It's good news: not only do they decide to get a place of their own, but they also drop the L-bomb for the first time.