I have a few friends that contact me and ask when I am next free to meet up or have a coffee. So I suggest X date, at X time and get 'Oh no, I can't possibly meet in the next month, I'm so busy, I'll have to let you know when I'm free' in return.
AIBU to a) be pissed off when friends do this as I think it's rude and self important when they've suggested meeting in the first place and b)next time they suggest meeting to say that actually I'm busy for the next month and will have to let them know when I'm free?
Why do people do this?