Thank you to you all for your replies - all of your replies are really appreciated. It's so very helpful to have outside views on this situation.
The graduate centre can't seem to find me an alternative supervisor, so it looks like they re saying I'd have to leave my course....
I'm being encouraged by peers and college staff to submit a complaint, but this wouldn't solve the issue of finding a replacement; no replacement = no PhD, Apparently. This just can't be right?! I'm told that by complaining formally that this may influence the graduate centre to find some creative solutions so I can complete my course at my current uni. Potential backlash, politics, and possibly an uncomfortable ride (on top of a PhD..) doesn't seem appealing. I've lost all confidence in my work and I am doubting my judgement of the situation - which is crazy because I know this situation is so wrong! My other supervisor was appointed to oversee his supervision as he's only had 2 other PhD students to date, so a member of the graduate centre contacted her to say there are issues - she then Skyped me and was very defensive, I tried to tell her what has been happening and her response over Skype along with other things was 'you ve clearly done no research anyway and If you have prove it.. maybe PhD isn't for you' (with a raised voice). I then passed a key assessment a week later so she wasn't correct there...but feeling like it's time to cut and run!! They all stick together on things like this!

Hi everyone, can anyone advise, or does anyone have any experience of this?
My supervisor constantly belittles my research, gives me unrealistic deadlines to work to, despite the fact I tell him why these are unrealistic. He reports back to others on my supervisory team letting them know of these deadlines and its stressful to then have to engage in these conversations explaining my case for why this is unrealistic when I've already told him. I've worked as a lecturer in HE and I also work in the field which my research is in and so I have good time management and organisational skills and I'm more than capable of completing work when needed, but Im being pressured into rushing work to meet his demands. He appears to have quite an aggressive nature, and ideas I have for my research are often dismissed. I have tried to talk to him about how we are working together and have told him I'm not happy with the way he speaks to me and have asked if we can look at a better way of communicating, but this didn't go well. Since, he has been more difficult to work with and after asking to see his correspondence with others regarding my research (which was possible through a specific university procedure) I have realised that he has been providing inaccurate and dishonest reports about my work and my communication with him. He used Facebook to share his anger about a specific issue, and although I wasn't named, it was clearly about me (that's not me jumping to conclusions...) I was told by colleagues about the Facebook thread that followed his comments. I feel like Im going mad, trying to manage a PhD is hard enough. Im doubting my abilities which is unusual for me, and I feel like my confidence is at an all time low. I have tried to find a new supervisor but no luck yet and this may not be possible. Can anyone advise/support/help me see a clear way through?!