I love my life but pls help. Im co-paretnign with a narcissist!!!

My blood still boils.
STILL!!!!
Pls help. Any advise welcome.
My life is pretty great.
I have so much to be thankful for.
But my God, he is one step too far of selfishness.
I ask to go to two classes per week which he can control and take away with out a blink of an eye. and he does often as and when he likes. I have no other baby sitters. I have one friend but her little girl bullies my son and he doesn't like going there...

The narc has been working this week and I so I understood I couldnt go to my classes.
He agreees that I can go to all my classes this coming week only to tell me the next day that he has changed his plans. I say that he hasnt seen his son for a week and he tells me his new girlfriend is going to brazil for two months and he needs to spend a few days with her before she goes and goes into detail about how he will be goign to heathrow with her and staying at his sisters.
he thinks this is ok????? ( I am listening to my teenage sons again :-D)
I am pretty pissed off. I dont really wanna know...
And whats more, he got his knickers in a right twist a few weeks ago because he had our son for the whole week bar a few days, accusing me of not wanting to be with our son. I mean.. PAH!!! then he can just decide as and when to have 7 days or more and then some more not having his son becasue it suits him and becasue of STUPID OW...
I HATE HIM and the hate it crunching up inside me. Even training today I couldn't touch on it. I FEEL so SICK to my stomach with his petty games.
I say look can you please let me know if I can go to my Sunday class, he is like 'look I will tell you later when I know" I may have plans that weekend with 'OW'.
And then he says...
"and Please stop texting me and calling me' its rediculous...'
OMG.
My blood boils....
I mean how am I supposed to know what he is doing? HE NEVER LETS ME KNOW WHAT IS GOING ON... he was supposed to be putting money in the account today and before 3pm. SO at 2.40I saw it was not in there, I tried to call hia few times and left messages and texts. ( I get charged £25 quid else)
he does not reply or respond and then turns up at my door with a face like sin.
He acts like I am the crazy one still. He is still doing this. makign it hard for me to communicate and then accusing me of bugging him...
FUK him, I woudl never ever speak to him again argant cock if I had the choice!!!! I wish I did have that choice.
Tell me how do you go NO CONTACT when you are tryign to negotiate money and child care?????
PLEASE tell me. I really dont want to call and text him and I would rather not have too but he puts me in situations where I have to call or text, he NEVER answers and then I look like the stalker. and all im doign is tryign to get a answer about something. Parents evening for example. I am still waiting to know who will go to parents eveing. I think he will tell me he is spending the eve with his OW when one of us should be going to the shcool. no text, no call and then when I try to conact him I will get accused of stalking him.
I hate him!!!!!!!!!
I try to forgive and be free of the hurt by letting it go but its hard. he still twists me in circles.
Beleive me I love that he is long gone from here but he still manages to get inside me and mess me up just by being so in control of my life. He dictates when I go out or when I do stuff. Healways says.... "your the one with the free house and the money'
He really despises me for the ties I put on him...
I am seeing a solictior soon when they have a legal aid slot.
Will they want to know about his finances?
I hate his shitty seedy world.
I pray one day that God gives me the tools to get away from him.
I pray for that.
x