I know it is hard to hear in the middle of the pain and doubt and anger... but you are more than your relationships. I went through (not exactly like this but) things that made me feel like I had been used, built up JUST to be torn down, and honestly- most of my breakups were devastating. But there is more to you and more in you than what Isaac may have helped build. I have confidence you'll find it if you keep rising. :)