Without knowing how things shook out with your gf, it's hard to know what to give you for advice. Have you already went down the route of pursuing your gf? If you haven't, then there is nothing wrong with finding out if there is still interest. You have to poke your head out of the dark sometime...otherwise, what is your gf to think? She isn't a mind reader, so, for all you know, she thinks you are happy with the decision not to see her or speak to her ever again. Have you given her anything that would suggest otherwise? From the outside, it may look as though you are perfectly happy...dating again, getting laid, not calling or anything else. Think about it. If you are trying to get her back, going dark isn't the only solution...and from where I stand..7 months says that it either won't work, or she truly doesn't want you. Care to figure out which it is?
You cannot be lonely if you like the person you're alone with. Dr. Wayne Dyer