does this make me a bad friend?

Okay so my friend told me she would come into my home room today. (For those who don't know what home room is: it's at school and at our school it's at the end of the day and it lasts for about 45 minutes. Basically a study hall and it gives you time to meet up with teachers for help and stuff before you leave.) Her home room is right next door to mine and she said she was gonna come in. I purposely sat alone and waited for her. I had to show her something that the office had given me. Well, as time goes by we end up only having 5 minutes left and there is no chance she is coming in. At this point I was mad and I put what I had to show her back into my bag. (My home room teacher doesn't let me leave. That's why I didn't go into hers.) After school she left for practice and I got on the bus and we didn't even talk or anything. I waited for her to text me later and at least say "hey, sorry I didn't come into your home room. It was because _____." But I get nothing. So I texted her at like 7 and said "hey, why didn't you come into home room like you said?" I asked nicer than the way I felt, lucky her. And she texted back and said "sorry, I was having a bad day." From when I saw her, she was fine! But okay, I understand. Everyone has bad days. So I said "oh well you should have told me, I had to show you something." And she read my text and ignored it completely. So I say "why are you ignoring me?" And she just said "sorry, I was just thinking about something." Am I bad friend for being kind of annoyed???