Karma
As wonderful as relationships are, there are so many challenging things about the experience. When you first begin dating someone you slowly start the process of becoming more vulnerable with them and opening up about all of the hard things about yourself.
Can you imagine being so vulnerable with someone, be dating for 6 years, finally moving in together to just be heartbroken at the end of it? It is hard enough trying to forgive someone for hurting you, but when they don’t even want to work things out, that has gotta hurt.