Life brings endings. Its not easy, and if you are wired like I am - loyal to the core - then endings feel like the end of the world! But sometimes endings are necessary! I've been reading a lot by Dr. Henry Cloud lately, and I'm in the middle of his book "Necessary Endings." In it, he points out that sometimes hope, while often a great quality in a person, needs to be founded on some reality or some measurable difference that shows that something will change in the future. If its not founded on reality, its just wishful thinking. Maturity and wisdom means that we can see the difference between hope as a positive virtue, and hope as wishful thinking.
I recommend this book to anyone who would like to get some clarity in their life on whether or not you should hold on a bit longer, or bring something to an end.