Waiting in front of his Dad's office with Mimi, he spots his father's mistress with someone instead. Someone younger, his age. Bidding farewell with the promise of calling Mimi later, he decides to follow both of them.

This has been going on for days until he decides he needs to talk to one of them. He follows the younger girl after a while of consideration, seeing how much easier she is to approach. She's always with the damned mistress one way or another, so she'll surely tell her to back off right?

"Hey, excuse me." He says as he catches up with you.