I've been working with this woman for over 3 years now - we have got on incredibly well - we often think the same way and she has recommended me to our boss for promotions etc in the past. I've always worked my ass off for her and always agreed to steer the direction of work the way she has suggested.
A year ago, I was given the chance to be the lead in a new highly important project that she desperately wanted to be the lead on and she was upset she didn't get picked esp as she's more senior than I am and technically my manager but outwardly she always seemed nice but it was obvious that was the first time I saw bad vibes from her.
Since then, she'll be friendly and that project ended up going not so well (she was part of the rumour mill spreading exagerated stories of the project's shortcomings (none because of me).
She is very intelligent (I'd easily admit has much more knowledge than me, works 14 hour days out of her own choice (over time unpaid) and eager to teach anyone and everyone and very outwardly friendly and approachable BUT a total control freak (with presentations, she'd make 15 different minor corrections to each of my slides over things that are up to the presenter rather than factually incorrect (at which point I think she may as well have done the presentation). Even with emails addressed to me that she is copied in on, she will tell me that she will respond to it and me not to worry.
Also, if anyone asks me to help them she now says my time must be requested via her.
The final straw was, whilst she was on holiday, she left me in charge. When she came back, she removed my name on a document which she asked me to review and left placeholders to fill in section (I didn't put myself as co-author but as updater). She also asked me to look at a detailed table where each person raises various points on a spreadsheet which is collected across team. She asked me and a few others to review this spreadsheet and tell her if she's missed anything.
I mentioned something that might be worth including and she agreed and said she'd include it (I said I wouldn't mind adding it if she's busy). She ignored that and then I find that she has only put her name beside it - a name goes beside each column so she already had her name against 6 or 7 other columns. So I was shocked to see she put her name for the 8th column too when that one was my idea....!
She used to be very kind and would even give me half credit on things she contributed much more to than I did (when I was in a junior role). I know she tends to have issues with nearly everyone who won't just obey her even though she's proper holly willoughby type bubbly and friendly personality with them outwardly. She's quite obviously a control freak and a micromanager but I feel powerless as if I go against her, I'll have issues going up the career ladder as her word counts for a lot to our boss in deciding whether to give me a promotion etc.