You said you'd find someone to take my place
Calum couldn't stop crying the first time they had an argument. Michael was angry at Calum, for a reason that the brunette never figured out, and he claimed he'd find somebody else - somebody better - somebody that will take his place one day.
Calum never believed it.
But it happened. Far too quickly.
And it made him sick to his stomach that Michael found a way to let him go so easily.