Guys really! Three things you never ever say to someone with depressions:
It could be worse. - Yeah STFU it could be a whole lot better
Look on the bright side. - in a depression there is no bright side
Only thing worse than those two is:
You must be so happy/You are so lucky because *stuff* - this is a typical trigger that can cause suicidal thoughts in a deep depression. because apparently you are supposed to be happy but you are definitely miserable.
Have scars from the time someone said all those within an hour to me.