My XH too is acting the same way! It is so hard because i know my 5 year old feels it when i am sad and it is so hard to be strong sometimes! And pretend Daddy's a good guy.. I send you a big HUG and hope you get your power back soon and dont let him take it from you!!
I take comfort in believing that this is all part of a bigger picture and it is suppose to happen that way and it is like this to make me get out of a certain pattern with him...I believe in reincarnation so it is really my desire to forgive him completely to make sure i never get married to him again!!!
I say things like i am grateful for you (in my head) when he is mean) It sounds stupid but wihout that I would be learning anf growing as I am.
anyway, all the best to you!