"I would prefer to try to find a way to attract his attention again and rekindle some things. Maybe it's too late, though."
Hi,
I believe that filing for divorce will attract his attention! I can't say that he will go completely nuts and do a 180, but:
1. Won't it feel so much better if you are the one initiating the divorce instead of him one day eventually?
and
2. You're not getting on with your life, and that is not attractive. Casually mentioning to him that you hope he doesn't mind but you are going to file the divorce papers, may get a reaction.
When he asks why? you can say oh well the men I will date will be very uncomfortable with me still being married.
A couple of questions:
have you dated anyone in the five years he has been gone?
have you and he had sex in the five years he has been gone?