This was a dumb fight...but it's not my fault. Options

[BryMonster]

Okay, so as you guys know, or may not know.
About almost a month ago, I started dating this
girl named Amanda. It's been a really good
relationship. But we just got into a fight over
the dumbest thing. Okay, so my last Rugby
match is on Thursday and I've been wanting
her to come for a long time. She could never
make it because they were so early in the
morning. Thursday, will be the last game
an hour or so after school. So I figured, the
perfect time for her to come to it.

The the dilemma occurs. Her brother has a
baseball game. I was on the phone when she
told me this and I stated simply, "You've gone
to almost all of his games. Just forget this one
and come to mine." And she kind of stayed
quiet. Then she said "I've made up my decision.
I'm going to his. Gotta go. Bye." AND THEN HANGS
UP! WTF?!? How mature was that? I was so
furious. I didn't call her back, I texted her saying
"Way to be rude." & she texts me back with, "Way
to be a jackass." I wasn't trying to be a jackass
intentionally. I've just had a rough day. But still,
the situation could've been handled more maturely.

Now, I'm not going to give in easily. I'm just not like
that. So I'm going to wait until she apologizes. What's
your take on this guys?