It's foolish to expect that one can get away with a breakup without feeling a scratch. I'm not aware of the Western culture where breakups seem to be more rampant than here in India. But is it really so? May be the plight of finding the perfect mate is equally strong in every country. And then, there are always those who prefer their single status rather than complicate the easy life. Or is just the 'sour grapes' psychology?
Anyway, if I've learnt anything from the relationships and breakups that I've witnessed around me, then it's that however smoothly you might want to end it, it wouldn't have broken if it was already going good.
Breakups are almost never peaceful. Any one of the two will try to hold on. And if both are happy to get rid of it, then sometimes whoever takes the initiative feels more powerful. The feeling of being somewhat unwanted doesn't really go away even if the breakup is mutual.