Lurker here, keeps me from calling keen! : ) haha ---but I had to chime in, in my experience, they always come back too, the grass just isn't greener like they think. The hardest part is letting go of the needy energy, once you do that - surprise! Also, sometimes they come back just to show you how much you've outgrown them and you don't care anymore. It's a win/win. Hard to get there, I know it. It takes a lot of personal growth and self love. I sincerely hope it all works out for you!