My main goal recently is to stop being a whiny bitch, but I've got a feeling that I fucked up again. As lame as it sounds, I'd like to know if I handled this correctly, piece by piece. I've put my questions in italics. Here's the situation:

One of my problems with my LTR was her not being on time or providing excuses for cancelling something we earlier agreed upon, such as going out. I guess what contributed was my low SMV. Old me would let it slide ("of course babe, let's ditch our reservation at this fancy place and order a pizza again"), but I decided to change something.

I've started noticing that many times we set a time to meet up at my or her place and half an hour before the agreed time I get a phone call that she only started getting ready or she's tired and will be late or whatnot. I've started pointing that out saying that I don't like it and prefer if she just let me know earlier or do X.

We were about to see each other this evening and were to set up the time in the morning. So in the morning I texted her "5PM at my place. Got it?" and didn't get the response for 5 hours even though I saw her active on Facebook, so she must have read the text.

Then at 4PM I got a call from her and asked what's going on, because I sent her a message and didn't get any reply.

"You know, I was sleeping all this time" (red flag for me)

"I've seen you active on Facebook"

"Oh I must have left it open" (another red flag)

"I don't like it that you're calling again to change plans at such a short notice"

"You never told me you didn't like it"

"I did many times. Do you have anything else to say? I've got stuff to do"

"...so do we see each other today?"

"No, I don't want to. Bye"

Now, it's different than my reaction from the past ("sigh, okay babe"), but I don't know if I still handled this correctly. There are many RP concepts I'm trying to relate to this situation but don't know if I got them correctly.

Question 1: Was I in her frame if I refused to meet due to her behaviour which was unacceptable to me?

Question 2: Should I communicate overtly that I don't want to meet because I find her behaviour unacceptable or just let her read between the lines?

Question 3: Was being serious the right way or should I just cheerfully say "you can come here, but you'll have to make up for it"

I've seen recent posts regarding similar situations, so I accept the fact that her actions basically say "fuck you", but I'm not willing to just stand and watch.

I know this might sound like a kind of a teen drama for more experienced commenters and some of you will die laughing reading all this. And I know I could just say "fuck it" and next her, but I have to learn something even from shitty situations, so I don't fuck this up the same way with another woman.

Anyway, all kind of feedback appreciated.