<human>: She is angry that I didn't say a single word to her.

I don't get it, I tried making very little small talk with her but it always end up with a non respondible answer.
You cant build on it. (I guess a little background with her is she is really hard to talk to. Like you would have to put all the effort into a conversation. She's not the type to ever ask you back a question or ever ask about you. So I guess she's a bit boring to talk to)

It's my birthday where I turn legal so my good friends were all buying me drinks & food and we were all having a good time at a pub.  she was designated driver cause she has school and she was talking to her white knight best friend the whole time. I thought she was having a good time cause they haven't talked seen each other for awhile.
I don't understand why she didn't say a single world to me or even tried to talk to me and she's mad about it. Is it that hard lol It doesn't make sense to me. If you want to talk to someone you would. 

So I aplogized and told her I'd make it up and go eat and grab dessert after she was done class. She said she wanted to go home instead. At this point I offer to reschedule another day and she said she will see how she feels. I'm actually mind blown how I'm in the wrong for something so small. 
What should i do? I feel like if she doesn't respond I'd just end it. I don't need stupid shit like this in my life 😂

Give me a shortened version of the text
<bot>: gf is mad at me for not saying a single word to her at my birthday party, I tried to but she isn't easy to keep a conversation  going. Now I'm mind fucked because