Colby was you're older brother before the terrible accident he lost his memories and he forgot about you and sam.. Colby woke up in the hospital you were there by his side with Sam but he didn't know who u two were. Colby: w-who are you?! Sam: you don't remember us.? Colby: no.. Y/n: Sam he forgot about us.. Sam: I guess we will have to try to be his friends again.. Colby: what do u mean again?.