Looking after the little one

Agastya before his daddy took him to school: Mommy, look after Lila while I'm in school, ok?

[He doesn't normally say that when I drop him to school with Lila, though.]

Agastya after coming back from school: Mommy, did you look after Lila when I'm in school?
*seriously, now???*
Me: Yes, yes I did.
Agastya: Was she a good girl?
Me: Yes, actually she was.
Agastya: Does she miss me?
Me: Of course, she always does.
Agastya: How do you know?
Me: Because she sometimes asks if it was time to pick you up.