I have one of those, a guy in my case. I've been married for 15 years and he left me several times but came back, plus I took him back. Last separation I met someone awesome... but I let him down because I went back with my husband in an instant. It has been about six years now, I do keep in touch with him and see him occasionally, but he has a girlfriend, he doesn't seem happy with her, but he stays with her. I'm separated once again, probably the last time and I can only think about the one I let go for the one I'm married to who is now dating everyone all over town and I'm left alone.