I had made plans to travel to see my friend. Originally, I was going to her as she said she didn't have money for travel (this is relevant).
I checked with her the day before that we were still on for meeting and she messages back "I completely forgot we made plans! I've made plans to go visit a friend. I feel bad now.".
I was a tad annoyed as we'd only made the plans that week, but never mind. I messaged back "No sweat. I'm glad I checked. Hope you have a great time.". This friend is now completely ignoring me. I have absolutely no clue why. I am really quite annoyed now.