[s12e23] - At Last

Officially begins her first post-Derek "tryst" with Nathan Riggs.

Struggles with Kyle’s (Wilmer Valderrama) health decline and her choice to prioritize her career over their relationship. [S12E23] At Last

: Alex is tired of waiting for Jo to marry him. He gives her an ultimatum: marry him or they are done. Jo refuses to give him a straight answer, leading to a devastating breakup. It is hinted that Jo has a deep secret preventing her from saying "yes." Officially begins her first post-Derek "tryst" with Nathan

: After weeks of bickering over patients and Meredith acting as a barrier between Riggs and Maggie, the two have a heated argument in the hospital parking lot. The tension turns into a passionate encounter, marking Meredith's first significant romantic step forward since Derek’s death. He gives her an ultimatum: marry him or they are done

Overcomes her fear of commitment and accepts Owen’s proposal.

It creates a dynamic, as Maggie reveals to Meredith that she also has feelings for Riggs, unaware that Meredith just hooked up with him.