terrible day!!

I will tell you about  my terrible day.
when this year march, I go to the Japan with my sister.
We go to the OSAKA, and we have fun in 3 days.
In OSAKA, i bought the tumbler that called SAKURA tumbler.
This tumbler is limited edition.
In Japan, and especially in spring i can bought this tumbler.
SAKURA tumbler little expensive, so to bought this tumbler i didn't buy anything.

Come back to Korea.
One day in first semester, I receive my poor calculus test grade.
Because I was good at calculus, it was disappointing.
Furthermore when someone passed by me, she dropped my tumbler and tumbler was broken.
Actually, I used tumbler until that day just 3or 4 times!!!!
She apologized and said "I will bud another one""
But I was really depressed about my grade, so I annoyed that telling something to her.
So I tell her” No thanks"

These days I regret telling her like that.
I should have told her "Yes, It is star bucks tumbler, here my phone number. Bought another ONE!!!, and call me later"