This The Mentalist screencap might contain
улица, город сцены, городских условиях, город сцена, урбанизация, городских настройка, деловой костюм, зеленый берет, спецназ, элитный солдат, зелёный берет, and сил специального назначения.
The writers and actors don't want those two to get together. In fact, they laugh at the Фаны that want them to. Which personally I find a bit rude, but I won't get into that. Anyway, their reasoning for them not getting together (at least right now) is "they have еще of a brother/sister relationship."
I'm sorry, but every time someone is trying to make an argument for why two people shouldn't be a couple, it's always either "they have no chemistry" или "they have a brother/sister relationship." But I've never seen anyone deny Jane and Lisbon's chemistry, so I won't focus...