Surprised no one's posted the commentary yet...

ホワイトデーだし、リリーに白いチョコをくれてやるよ

ちくしょう・・・・可愛いなぁ・・・コイツ・・・

Google Translate is actually almost literate for this:

It's White Day, so I'll give you some white chocolate, Lily.

...Doggone cute guy I wonder...

Well, okay, the second line could use some work. Hence the "almost."

Still, does gaoo have a soft spot for Lily? Or is this one of those "hidden torture" deals (such as, Lily being highly allergic to chocolate)? With gaoo, you never know.