Benson and Stabler have a long relationship history on Law & Order: SVU. The two were partners for the first 12 seasons of the series, and many of Stabler’s best episodes of Law & Order: SVU focused on his relationship with Benson. Originally, Stabler was the more experienced cop that was supposed to help Benson learn how to work SVU cases, but their relationship evolved over the years. During the early days, their relationship was strictly platonic, although Stabler’s wife was often jealous of the time her husband spent with Benson.
https://screenrant.com/olivia-benson-elliot-stabler-relationship-timeline-law-and-order/