Monu, you said in response to Sara that love means to just make your buddy happy. I agree with you but what Sara said has much deeper meaning. She means to say that even if you have to make some scarifices for your love, you would gladly do to make your partner happy. She said this in somewhat poetic way.

:-)

No sara there is no matter that you would sacrifice your wishs or not , love means just make your buddy happy .

and the happiness of the other person becomes more important than your... so you would sacrifice everything for his smile <3