The grass is NOT greener on the other side. Its just that from where you're standing (viewing your life), the Sun is casting a different light on it (another life looks exciting).

You have/had love, you have history, you grew up together. Before you move away from that, if you were even planning on doing so, I would do everything within my power to recapture the love. Was he at one time your best friend?

I think everyone has given some great advice and its been from both sides of the fence, so to speak. We never know what's in another person's heart without asking them.

Ask him point blank if there's still room for you there...