I'll put it this way:
When Maz Kanata asks "who's the girl?" in her pub, the scene cuts. So we know Han talked about Rey with Maz, and then Maz shows up in the basement where the lightsaber is. This is the scene that gives most people the impression that Han knows who she is.
However, later in the film we hear that Han told Leia about "the girl" (when Leia first meets Finn), but that part of their conversation is likewise cut from the film. What exactly did Han tell Leia?
On top of that, Han says that he didn't find the Falcon "by coincidence," but we're apparently supposed to believe that it's a coincidence that he didn't check out the precise part of Jakku where Rey was living when he was first looking for it - the girl whose past he knows but won't tell her about.
Interesting. Man, I'm always amazed at how people pick up on these details in movies haha. I'm the worst at putting pieces together like that
God I am so hyped to see what Rey and Luke say to each other at first. Will he just blurt it out (My daughter...)? Sort of tell her the story/reason for abandonment over time? Give her clues to let her figure it out on her own as a sort of test?
Now I'm picturing her training with Luke and he's riding on her back like Yoda did to him lawl