I'm pretty new to the game. When I met this girl, in fact, I didn't even know about the community or anything. There were definate IOI when we would see each other in person. When I got her number I was maybe a week into this shit. I wasn't even pursuing this girl very seriously. I just wanted to keep her number in the rotation for practice.
I have texted her once to try out a routine I had heard about. We texted back and forth, a flirty nice interaction, it was a success. Or so I thought. I texted her maybe a month later, just to say hi. She replied.
Hadn't seen her in person in a long while, and also, I wanted some practice. So tonight I decided to call her. But she pretended as though she didn't know who I was. I asked "Is this *HB Name*?" She said I had the wrong number. Of course, in this day and age nobody dials numbers anymore, they're all stored in our phone/caller ids. I was shocked. I immediately replied to one of her text messages about it. No reply. I called back like 15 minutes later. This time she doesn't pick up.
I can't for the life of me imagine what went wrong. I can only think of one instance where I sort of did a freeze-out on her in person, but the next time we saw each other everything seemed cool. It can't be that I came on too strong. I have no idea why this girl would pull this kind of shit. Perhaps I never transmitted enough interest? But then why would she go through all this trouble?
What should I do? Should I confront her about it in person? Try calling again later? Ignore her the next time I see her? This just doesn't make any sense to me.

