Most Helpful Girl
You don't want to be on track with someone that can't mention they were going out of town after talking a whole month with you THEN can't understand why you would be hurt after being IGNORED all those attempts to be nice.
So forget her. That said, most people are worn out & grumpy facing the real world & problems like yours (even if their own fault) upon returning from fantasyland. If she recovers, reviews the evidence, has a heart (I wonder) and then DOES THE RIGHT THING = calls/texts you w/apology, only THEN would I forgive, forget, apologize in return that you should not have reacted so harshly and suggest a new beginning with dinner out - you'd love to hear ALL about her trip
Most Helpful Guy
You handled the situation down to the letter and didn't do anything wrong. It was wrong and disrespectful of her to not let you know that she was going out of town. She had stopped being interested in you when she stopped texting, so now that you've pointed that out, she became defensive and tried to throw it back in your face to make you feel bad about it. She most likely isn't telling the truth and I suggest you look for someone who will pay better respect to you.