I don't like how you handled the first call, but the second call, I think you handled it perfectly. I like your comments about its myspace and my memories, you showed her YOU control YOUR world. You didn't back down, thats important, then you cut let her go: perfect!
Don't take any more calls from her today as she's emotionally riled. But if she calls tomorrow or whenever, take the call, and repeat the steps on the previous page, ask her what she wants, if its not a date, then tell her your busy and have to go.
Look at how it got her riled up, don't deviate from this. After a week or two, if she doesn't make a move and keeps persisting, then I would ask her on a date, if she says no, then go back to the same thing for 2 weeks.
If she says yes, then go on the date and only treat it as a date, don't get sucked into drama, don't talk to her otherwise except to set up dates. She has to earn time in your life, remember you are the prize. If you treat yourself that way, she will be forced to as well.
Remember though, your fighting a losing battle, you've given up power in the past and theres a chance you may never able to recover, so you have to stay extra strong on the DJ principles if you are going to succeed. In order to do so and build your value as the prize, get out there and start dating.
Yes this girl is great but you know what? I've had a oneitis for 3 years after we broke up, but guess what, after I finally got over her, a few years later, I found a new oneitis. Now I'd much rather have the 2nd oneitis even though for all those years after I was broken up with the first oneitis, I still thought she was "the one" only to find out, I can feel that good and that special with another women.
Granted the next women you date, might be boring and not cut it. But thats why dating is fun, you get variety, sure they're will be sh1tty ones, but eventually you'll find another that makes you feel even better than your current oneitis.
edit: if you haven't already done so, take down the pics of Gin, why you ask, two fold, 1 she's ugly and 2 to slap it in the face of Carmen that you took down Gin's pics but not hers. Although, if things ever start to get going with Carmen again, I would take them down at that point and keep them down forever.