No, that was a jail house recording... Lee asks ICA 'Was this like last time' to which she answered in an affirmative IIRC (don't remember if it was more than just "Yes"). But remember up until CA brought ICA home, they were both missing.
Lee went into LE mode on her in the bedroom and he never said what she replied to his questions about Caylee being missing except "Mom said I'm a bad mother blah blah'' and "Maybe I'm just a spiteful b!tch!" - remember ICA and CA started counterproductive fighting or sniping at each other while he was trying to play cop, then the cops showed up and Lee was put on hold until the jail visit.
When that recording first came out, people here (and other places) went nutz talking about another lost child etc... That made no sense to me, but if Lee was referring to ICA taking off with Caylee, that makes sense. Of course this time her boyfriend wasn't being accommodating to her circumstances, so she fixed that!
BBM. I remember it as she answered in the negative "No, not at all" or something like that.
No one's been able to find that vid though, and some say it was never said -- but I'm quite sure I heard it.