[quote=Esper]
Why does one apologize for misunderstanding and simply not clarify. Misunderstandings do happen and have no malicious intention on my part. Why then would I be sorry for an act that was a result of different thought processes. It isn't that I never say sorry. It is that I apologize when I am sorry. Not when I am not.
[/quote]

Well, in the very specific example of misunderstandings, perhaps apologies are not entirely in order - though, at times, it is nicer to say sorry to express regret that an argument was caused, rather than in an apologetic sense. Ironically, it seems a misunderstanding may have occurred here. Your phrasing certainly did not indicate that you were specifically referring to misunderstandings, and made it seem that you consider apologising in general, for anything, as a "lie".
Everything else I said still stands, though.
Also, sometimes it's the mature thing to apologise even if you don't 100% mean it. Heal rifts, choose your battles, be empathetic to the fact that they were upset, etc.