to talk or not to talk.......

Today i thought i would apologise for distancing myself from someone and explain my reasons. Being of the belief that you shouldn't dwell on things that upset you and that you should always talk things through, i thought this would be useful for the recipient to hear. But what if the recipient doesn't enrol to the same school of thought? Should we be selfish and share our thoughts to make ourselves feel better or should we remain tight lipped so not to upset others?.....to talk or not to talk; that is the question?