Peeved

what is it that makes someone think that i can be at their beck and call? what makes them so inconsiderate to the needs of others? my boss has been royally pissing me off for a while now, and i take it as a sign that it is probably time to leave. after 4 years i think the time has come. today i was well prepared to go into work, i emailed her in the morning and told her i was coming in. she emailed back saying she doesn't have time today and there is nothing for me to do, so don't come in. that was cool with me. i went home , then went to the gym and on leaving the gym, got a missed call from her. so i returned it, it was her asking me if i was coming in because there are images that she has just gotten that she wants plated. i was like, it is 6 o'clock!!! she was like, yea but i thought you were available.... i was like i was available at 3, i told you this and was well prepared to come in but u told me not to come. she said, yea i know but blah blah blah. then she asked where i was... i just simply told her that i am in the city on my way to study and that i can't come in. seriously what does she think, that because i said i was available, i don't have other things to do? that i should leave my schedule open just in case some late work comes in? that i should go in after 6 pm, ruin my plans to study and do other things? i find that just plain stupid, she has absolutely no respect for my time whatsoever. there are times we make plans to work, i go in and she calls hours later saying, well i guess i figured out that i'm not coming in. what is that? or the times when she fully expects me to stop doing other things in my life so that i can work till 9 pm if she wants. i know this is a small thing, but it just really peeved me off. sometimes, most times, she is unbelievable and only takes into account her needs and time, or things that impact her directly, never what anyone else is doing or sacrificing to make her research go forward. i'm done. as of January, i'm not working there anymore...