Okay but for real, the season finale for the first season is something else, just in terms of Jane’s actions. He gets all upset with Lisbon about their plan and being led to Red John and Jane has so little regard of his own life. Even when Maya is mentioned, he just. All he wants is Red John. If he can’t have a go at him, he needs Lisbon to get him, even if it means his own death.
This guy is practically allergic to guns most of the time. But the moment this guy makes a move - as obsessed with Red John as Jane is - Jane shoots him in defense of Lisbon. Like he doesn’t even think, he just picks the gun up and does it. And then his hand kinda shakes and he drops it immediately.
Say what you will about the first season of The Mentalist, it’s more episodic nature and Jane’s behavior etc., but the dude cared about Lisbon from the get-go more than he probably gets credit for. And I appreciate that.