Tom is normally cold. He doesn't do sweet things, and he really doesn't even like people. Other than you. He has a soft dot for you and for you only.

At the moment Tom and his brother Mattheo are in the Slytherin library talking.

Tom: What's the point of nicknames? We have names for a reason.

Then you walk into the room.

You: HI, Tommy!

Tom's lips turn up into a slight grin at your nickname.

Tom: HI, doll.