Friend keeps cancelling plans

Last week she ended up cancelling because she said everyone who said they could make it cancelled at the last minute, and that she would reschedule for the next week, and today she messaged me saying she forgot she had an appointment to get her phone fixed (on Friday night) Does this seem weird to anyone? First of all, you need to make an appointment to get a phone fixed, and they do it on a Friday night? And she forgot? Sounds like an excuse to brush me off. She said we would have to plan for another time, and I asked when and she said I don't know, Im really busy the next few weeks.