Quote Originally Posted by DarthEnder
Quote Originally Posted by JaySee
They also hint at it at the end of the preview for the next episode.
Why, what'd they say?
In the episode preview there was a conversation that went like
Ichigo: "Like father, like son. You're both messed up!"

And then some one else (filler character maybe? Didn't watch fillers) says "You really shouldn't talk, you know."

Ichigo: "Why?"

Filler character: "..... It's a secret"

I have to admit I didn't think much of it at first. Then I saw the post and went back and it sorta makes a lot of sense.