Life is too short to wake up with regrets. So love the people who treat you right.
The phrase it is what it is basically means that the facts can not be changed so you might as well accept life on it's own terms. It is what it is quotes show that this phrase may be used in many situations, such as relationship breakups, flunking out of school, or even having a minor fender bender. People with this attitude tend to be more positive and to accept the punches that life throws their way without dwelling on the negative aspects of the situation. Simply refusing to get upset over something and stating that it is what it is will help you lower your stress and have a healthier outlook on life in general. When you keep obsessing on the negative this can cause health problems, so it is what it is may be the best attitude to have.