A friend asked for a favour. It's a fairly big favour but one I'm willing to do.
This friend is a good person but notoriously unreliable and forgetful. Absolutely someone that's great to be around, but ultimately puts themself first.
In order for me to help with the favour she needed, she had to call me to talk through the details.
Said friend has then spent two days saying she'd call me at a certain time, forgetting to call, disappearing, rescheduling another time without apology and generally just behaving like me and my schedule/time aren't important. Eventually she called to give me the details just as I was going to bed last night. I text after the call yesterday asking for more details that I realise I needed and she didn't reply until a moment ago.
I'd like to raise this with her as it's rude as hell. I don't want to throw my toys out the pram by refusing to help now but it's made me feel very disrespected and not very enthusiastic about helping her.
This is very typical behaviour for her, incidentally, and has always driven me mad. She has other lovely qualities though.
How do I phrase it without causing WWIII?