Harry: watch movies together
Draco: sings to you and makes you dinner
Ron: gets you food
Fred: prank the person who upset you
George: tells you jokes
Oliver: acts like your servant
Neville: cuddles with you
Cedric: he does what you want
Seamus: lets you sleep

The Marauders
James: he takes you to hogsmade
Sirius: he turns into Padfoot and lets you pet him
Remus: gives you books and chocolate
Severus: takes you on a date
Peter: freaks out and cry