Welcome, sorry that you are in so much pain. Honestly, he is a garden variety active user, your story is one that I have read at least a hundred times, and one that I have lived.
Addicts lie, addicts manipulate, addicts will tell you...anything...to get what they want..in that moment in time, then two days later, it is a whole new story, first they love you, then they hate you, then they boo hoo and beg, then they attack and abuse, then the cycle starts all over again. It is all pure insanity.
Take some time to read the stickeys at the top of this forum and cynical one's blogs, lots of great information at your fingertips.
Might be time to hop off the rollercoaster ride from h#ll and go no contact for life. You deserve so much better. Take care of you.