"There is something I wanna tell you, Lisbon. Something I should have said a long time ago…"
- Jane, 6x06
And now you said it.
Jane also says “There’s something I always wanted to tell you” in the ep with the bomb strapped to Lisbon, as he’s picking the lock to the room where the killer is. I have always believed that he was going to tell her he loved her in case things didn’t go as planned. He didn’t get the chance to say it, but he refused adamantly to leave her when she ordered him to, which means he was ready to die with her, Red John be damned.
Other people, including my BF, maintain that he was just playing for time by talking, but why would he do that? The non-shippers always had some rationalization for it too. (BF would have been thrown out on his ass had he not admitted early on that Jane loves Lisbon. But he was never a Jisbon shipper, and still teases me about having a girl crush on Robin. :-D