The Mentalist's Teresa Lisbon and Patrick Jane are on the verge of separating once more, and this time by choice.

Patrick Jane Is A 'Broken Toy', Can He Fix Himself & Have A Relationship With Lisbon?

The long-time friends and partners were unwillingly torn apart following Jane's (Simon Baker) experiment with vigilante justice, but Lisbon's (Robin Tunney) impending move to Washington D.C. will not be for strategic legal reasons. Although it appears the former CBI agent has found a man who is more than willing to commit to her, will leaving Jane behind reignite the feelings of loss and loneliness the pair experienced when the faux psychic too a two-year long vacation abroad?

According to Baker and Tunney, the answer would be yes.

Lisbon Just Waiting For Patrick Jane To 'Declare Himself' On 'The Mentalist'?

"You look around and the person standing next to you for five-and-half-years is nowhere to be seen, there's an emptiness and a hollowness," Baker explained to The Hollywood Reporter, referencing his character's feelings during a two-year time jump. To leave Lisbon again would make her absence all the more noticeable. "It was an obvious progression to get to the idea of longing and missing that person who, when the dust settles, has always been there and [now] she's not there."

Meanwhile, Tunney believes Lisbon has a very similar view of Jane's position (or soon to be non-position) in her life.

"They're both lonely people and they had this thing, [Red John], in common. Once that was gone, Lisbon really missed him," Tunney told The Hollywood Reporter. "She realized that it wasn't just about catching the bad guy: 'I love being around this person and what does this mean?'"

Knowing how it feels to be apart, will Jane and Lisbon attempt to start a more romantic relationship in the season 6 finale?

Tune in to CBS this Sunday at 10 p.m. ET to find out. Click the video below to see a preview of "Blue Birds."

Tags: The Mentalist CBS television