Sorry you're having such a bad day. I can sympathize with you and so can my wife! My mother - in - law is very much without boundaries. While we don't live with her(she lives alone) she calls every day just about and is constantly e-mailing my wife and I. I know she means well and she's lonely but she works a full time job at her sons office. I have a lot of respect for her but we just need a little space.
I agree you are lucky to have a mom who genuinely cares about your welfare. Cherish her.