You're obsessing. FORGET ABOUT IT, AND GET ON WITH YOUR LIFE WITHOUT HER. Trust me, I've been through this before, and I can absolutely, positively guarantee you that the ONLY thing you're going to accomplish by having dinner with her and talking about poking her is driving her further away and setting yourself back to square one. It's pointless.
She's GONE. Get it? As in "NOT WITH YOU ANYMORE." You continuing to obsess over her is NOT going to change that one bit. IF she decides to come back to you, it will NOT be because you obsessed her into it. It will be because you've moved on without her, and have figured out how to stand on your feet, and in doing so, you magically became the person that she'd originally fallen in love with, and, God be willing, if the stars are properly aligned and it's what is meant to be, she WILL come back. Or not.
Either way, the ONLY way you'll be able to move on, with or without her, is to forget about her now and move on, focusing on yourself.
Join a gym, take a tai chi or medidation class, immerse yourself in a home improvement project, learn a new craft or trade, read more books, kill the TV altogether, if you haven't already, go for walks, hang out at the local coffee shop for an hour every day, just to meet new people, study your town's history, visit a museum even, go to a movie or ten, buy at least one CD of a flavor of music that you've never even considered listening to and fall in love with it, see a live band, see a chamber orchestra, go to a play, polish your knob...
Whatever you need to do to get your mind off HER and onto YOU, DO IT.
