My girl friend and I of 3-4 months made plans together this Sunday. I messaged her this morning about the time and this is how it played out:

Me: You can come at 12 Her: I forgot, but ok ( This kind of pissed me off so i didn't reply) Her: Can emily come? (her friend) Me: No Her: Why? Me: Don't come Her: K

I haven't texted her since This is the first time we would have been able to spend some alone time together in almost a month because i've been busy with shit. It pissed me off that her idea of spending time with me is bringing her annoying friend along. I have better shit to do then waste my time on something she "forgot about".....so did I handle this right? If not how should I have?