I Just Don't Like To

This few days there are so many friends are having birthday celebration.
They invited me as well.
Some were msn me and asked me and some were sms me to ask me,
but I don't feel like going and rejected already.
I just want to stay at home actually...
Why when I want to stay at home, then there will be lots of invitation?
While when I want to go out, nobody cares to ask me out?
Sigh...
Sorry...