Lisbon had finally had enough. She needed to take a break – a break from the CBI, from her team, and, more specifically, from Jane. He was starting to drive her insane – literally. She knew that she was three incidents away from being committed to a psych ward. So she did what she had to.
Now, I know what you're thinking. Jane always acts seemingly irrationally. What could he possibly have done to push Lisbon over the edge?
It started shortly after Kristina Frye was delivered to the CBI. Jane started acting even more strange and suspicious than usual. It began with the odd (and strange) phone call once or twice a week when they were in the office. Then these calls happened when they were in the field. He would come to work looking exhausted, yet more relaxed (and flirtatious – and insane) than normal. And he smiled – actually smiled – a lot more. But it was an exclusive, slightly unnerving smile. Like he was remembering a private joke. Then came the women. After a few weeks of the phone calls, women started parading through the CBI. It didn't use to happen quite as frequently, maybe once or twice a week, but soon a different woman would arrive with Jane to work. Lisbon had to call security to forcibly remove them, as Jane was loath to part with them. After the women started showing up, she quickly put two and two together and realized Jane's stupid behaviour. He was having one-night-stands every day now. She knew his mental health was rapidly declining since he was flaunting this unhealthy behaviour.
This whole situation was simultaneously depressing her, frustrating her, and driving her insane. She had been in love with him for a while now, and it hurt that he was seeking comfort in these hordes of women. But what bothered her most was that she couldn't fix it. She couldn't fix him, or his problems.
The team was so tense and she was falling apart. Grace couldn't believe that Jane would act so grotesquely and, in her eyes, immorally, so she wasn't talking to him. Cho and Rigsby couldn't believe his arrogance and insensitivity. No one on the team wanted to spend much time with him. Lisbon, the constant martyr, tried for weeks to get him to focus on the case instead of the next hot girl he had lined up for his bed, but his stubborn streak held strong. He was not letting go of his poison, though it was slowly killing him, and by extension Lisbon. He had always been a charming flirtatious man, but now he was focused merely on the sexual. He forgot his rule of seduction. Most women avoided him like the plague, but the bimbos – those he preyed upon. They feasted his insanity, and Lisbon's misery.
It took her three months to reach this point, but she had finally reached her breaking point. She did what she had to – she went to see Hightower.