Will Trent and Angie Polaski were the central relationship in Will Trent season 1, but when season 2 comes along, they shouldn't be together. The two have a long and twisted history together, as they were both orphans and grew up in the same foster home when they were teenagers. Will and Angie endured copious amounts of abuse, and their trauma has bonded them for life.
https://screenrant.com/will-trent-season-2-break-up-will-angie/