I don't understand

I'm really having a hard time understanding how some people go through life, living it the way they live it and have no problems or see no problems with how they are.  I guess that can be said for everyone.  But, I'm not understanding how some people can be so mean, so belittling, so rude and down right nasty.  I also don't understand how when said people are essentially called out on this problem, they turn around and become nastier, ruder, meaner and drop their age by about 50 years and throw a tantrum like a 2 year old.

Okay, I get that no one likes to have the truth pointed out to them especially if they are the asshole in the equation.  But at what point do you let that go and move on?  Why are these people so hellbent on making everyone else miserable and ruining such a good thing in the process?  The same people, who in their tantrum, claim they are about the greater good?  Why can they not see that they were and are still part of the problem?  Why would anyone want to put forth so much effort on being a total dickwad?

All of this constant bickering, backstabbing and the like is doing nothing but leaving me with an even bigger migraine than I had before and making me second guess everything that has gone on.  Should I have just went along with the ride like so many others have before me?  Or quit like so many others did instead?  I pride myself on not having any regrets because everything that has ever happened in my life or will ever happen in my life happens for a reason.  But, I have to be honest and say this is quickly starting to look like my first one.  I know things get worse before they get better and I'm usually the one driving the positive float on the piss parade but this is really starting to get to me.  I feel like I'm back in grade school trying to hide from the bully.  I guess the only thing I can hope for, right now, is seeing a light at the end of that famous tunnel.

I don't even know how to end this.  I've never been flabbergasted so many times in my entire life than I have over the past month.   I just don't even know what to say anymore.

Much love and light~

Tammy