Friendship?

today one of my friend suddenly ask me : "wats ur think bout friendship??"
she told me wats she think bout friendship n i agree her point...
u c..
when they need u they will very friend with u.... chat with u.. play with u.........
when they din need u they will mai chai lu n din talk to u ever though we sit together, study together, go school togther in whole day..
and some time because they need us help n we cant help at all n make us do against the law but we dun wan to do.......
they will suddenly angry n because of tat n dun be friends with u...

only jus we say no to them so no friendship can do??
wat logic is tat?? jus because we dun wan to go out with them because out of money then jus mad at us??

so is tat only every time we say yes n do wat ever u say like a dog and an owner??
is tat how the friendship is??