questions

is there such thing as "best before date " for feelings too?
love and affection just expire?
when do you know for sure who you really are?
is thee an absolute truth? or absoute anything, for a matter of fact?
when we do good deeds, we do them cus we want to do good or just couse we know that if we do good,some day we might get something good in return?
what to do to never get BORED??????