I finally deleted my ex (C) and his sister off my facebook friends' list. Then I went and deleted all my e-mails from him, but stupidly read a few. He was an amazing man and maybe I gave up something more than I realized.
What's done is done. I have to remind myself that I was completely convinced that God wanted me to break things off with C, because we were not equally yoked.
In the world's eyes, I was an idiot. I just pray that I didn't make a mistake in His eyes.