Why?

Why can't he remember?
Why can't he remember the thing before we started?
Why must only remember the things after we started?
Why is it not important?
Why must be so harsh to me when i say i want to go holiday during year end?
Why must nag me every time i feel like indulging myself?
Why?

Should i ajak somebody to go travel with me other than him?
Should i just indulge myself when i feel like it because i'm spending my own money?
Should i just forget the things before we started?
Should i not be particular when he say he cannot remember the things happened before we started?
Should i treat it as not important?
Should i not go on holiday?