莫名其妙

What the hell happened?

This is just so weird!

What the hell happened to you? wow.

I really cannot understand what are you thinking in your mind.

I knew you for so long,since form2. But then you're still acting like the age of form3.

What's the problem?

What made you clicked the button?

I felt weird when there's no notifications of your birthday.

Thought it was you own setting problem.

Can't wish you Happy birthday.

You ignored my message.

I still can't figure it out what I did wrongly.

You.

Never appreciate me as your friend.

So,okay, it's your decision and I don't wanna bother about it anymore.

真是太莫名其妙了。