Valentine's in 2nd Grade!?

Conversation with Shaun today:

Shaun: Mom, I picked a Valentine today.
Me: What do you mean by that?
Shaun: I asked Ariana if she wanted to be my Valentine.
Me: Oh - and what did she say?
Shaun: She said yes.
Me: So, what does that mean?
Shaun: It means we are friends and are nice to each other and I get her a present for Valentine's day.
Me: Oh, so what kind of present?
Shaun: Like a card or candy or something.
Me: But, don't you exchange valentines with everyone in your class like that?
Shaun: Yes, but I get her a nicer one.

 (I actually really like Ariana - she's a cool, sweet, smart girl that he's had in his class for 3 years now.  I wonder what she told her mom about their little interaction today...hmmm).