 After becoming good friends, Peter's wife Alicia finds out Kalinda had a one-night stand with Peter before she knew Alicia, damaging their friendship; but over time, the two start to reconcile.In season four, it is revealed that Kalinda has an estranged abusive husband, Nick Saverese (played by Marc Warren).Kalinda also grows romantically close with Cary Agos (Matt Czuchry).