Mello missed you

He hated himself to have the feeling of missing someone, it was frustrating that he'd have a need for someone at his side, so he grabbed his helmet and decided to take a ride to your house, hopping on his motorcycle and immediately jetting off

He parked in your driveway, sneaking to the side of your house to your room window, he could've knocked on the front door, right? Well, he didn't do that!

"Open up before i shoot the window out,"

He stood there on the other side of the window, from the outside, as he took a bite of his chocolate bar. Was he being serious about shooting out your window? God can only know.