After that I ignored all her phone calls and texts. She maybe tried 3-4 times... but I gave up. That was the ONLY time I flat out abandoned a girl without some sort of closure.
However my last girlfriend of 9 MONTHS ghosted right before New Years after a minor argument. She blocked me on facebook, block my number and ignored me when I saw her at the gym (we worked out at the same place). Given that she was only 21 I wasn't that surprised, but I was very disappointed. I've also had several girls ghost me after a couple dates. That's so common I expect it now and if girl gives me a polite reason why she doesn't want to see me anymore, I take it as a rare pleasant surprise.