I heart Maggie

Justin has a crush.  Our next door neighbor, Maggie, age 8, has been over to play with the kids several times this past week.  Yesterday morning on the way to school Justin informed me that he had a secret but that it wasn't for me, it was for Maggie.  That afternoon when Maggie came over to play Justin tells her that he has this secret and, of course, Maggie asks what it is.  Justin says "I've been waiting all day to play with you!"  Nothing big.

Today, as we're saying goodbye to Maggie, Justin says to her "do you remember what I told you yesterday?"  She says "yes" and he says "okay, just don't forget."  Now I'm a little interested . . .

Over dinner I ask Justin (several times) what it is he said to Maggie yesterday.  His replies are all the same "I don't know," "I don't remember," etc. Silence. "That I love her."  WHAT?! 

Me:  "Oh, you said I love you to her?"

J:  "Yes."

Me:  "And what did she say?"

J:  "She said that she loved me too."

Me:  "When did you say this to her?"

J:  "When we ran down to the stop sign."

Me:  "Oh."

I know it's all innocent, but any parenting tips at this point would be much appreciated . . .