After their plan to capture Red John goes horribly wrong leading to the gruesome death of CBI Director Wainwright on The Mentalist season 4 finale, Teresa asks Jane if he's OK. He tells her he's fine and then he takes her hand in his as the two deal with the latest of Red John's horrors.
On The Mentalist Season 4 Episode 24, "The Crimson Hat" just before Jane must pretend to kill Lisbon, he hugs her tightly and says he loves her. He later claims not to remember what he said due to the extreme stress.
In The Mentalist Season 2 Episode 11, "Rose Colored Glasses" after solving the case, Jane and Lisbon share a dance to the song "More Than Words. Lisbon certainly looks comfortable in Jane's arms.
Teresa's smile doesn't quite reach her eyes. We think she wants to be happy with Marcus but is she really? Or is there another path she sees for her future?
Is Jane still trying to figure out whether Lisbon is headed to D.C. with Marcus Pike? He's certainly looking at her curiously on this episode of The Mentalist.