Oh dear
I am so fed up of being undermined and blamed for things and generally criticised. Also being talked down to in front of the dc and guests.
I had thought our relationship wasn't going too well due to resentment and basic incompatibility about a year and a half ago. I asked him to leave 15 mos ago after things came to a head but after a heart to heart he said he did think highly of me and things would improve. That we would get on, parent the dc together for their sake even if we were not having an emotional relationship as such.
However, another row this morning over one of the dc activity led to me losing my rag[no dc present] and calling him a manipulative bully because he is always right, never sees anyone elses POV and likes to have his own way. I had told him I was ferrying dc to this actvity [last night and this am] and then heard him talking to ds this am "I thought I was taking you but she wants to take you so I'm not." Cue crestfallen ds and me like a lemon.
I said I'll only be a minute, was just trying to help and was going to brush my teeth, came back down and they were on the way to the car!! Without even telling me they were going.
I said I was taking him and we went but asked dh what he had done that for... this has happened before, to be told its because I "was in bed" and would have missed it 
I asked him if I was reading the situation correctly to say he had not a good word to say about me and had no intention of getting on fairly for the sake of the dc.
This led to him calling me an obnoxious person telling me to piss off and to shove my reading of this situation up my backside because it was absolute rubbish.
This led me to telling him I want him out that this charade can't continue and wasn't helping anybody
Where do I go from here?