Same situation with me. I think he is trying to recycle the relationship as he knows you are serious this time. I know thats what happened with me. And I gave in. He is so sweet and perfect when he is happy and in love... . but it never lasts. never more than 4 days i noticed.
Now its 100% . it is over. finito. and he knows it so now he rages. I let him rage . I smile and nod

Im soo done with the Jekyll and hide like you said. Ive got a life to live.
Hope this helps!