I would give it one last try, but if I were you, I’d make it a real date, not just getting together, and I’ll tell you why. There is a slim chance she may be waiting for you to actually ask her out on a “proper date” rather than just getting together. That slim chance exists that she’s being non-committal about getting together because you haven’t formally asked her out.
Try calling her and before letting too much time elapse on the phone, ask her specifically to have dinner with you at a particular restaurant on a particular time and date. For instance, say: “Would you like to have dinner with me Saturday night at 8? I made reservations at Luigi’s.” Not only does that show her you want to treat her like a real girlfriend, not just a friend with benefits or less, it also pins her down so that you’ll get a clear yes or no.
If she says no, or more likely, wiggles out of the commitment, then you have your answer: she’s not interested in anything more than a phone buddy. But if she says yes, then your adjustment will have paid off.