I can't give you advice on whether to meet or not to meet - but I guess if there is anything you'd like to get out of a meeting it may be worthwhile.
I know that you have decided to file, but I also read between the lines that you still care for him very much. Perhaps the 'date' could be an opportunity to have a good time together, you know, laugh, have fun, chill out ... it might bring you closer to him and might remind him of what he loves about you. I think a lot of the reason we grow apart from our WAS is that when we detach we really detach - sometimes I think the secret to detachment might be to detach from the feelings our WAS inspire, rather than their company full stop. KWIM?
Look in your heart and feel in your gut. You'll know what to do.
V
Never make someone a priority, who makes you an option.
