Cant we just go back in time?

Im not really sure what to do a piece of me wants to call him out on his bullshit. But a piece says just play along. This man at one time ment the world to me and as horrible as it is i rather allow him to hurt me a thousand times then let him go. I dont know why. A nagging feeling in me says i owe him this victory. He was my strength at one point and i left him standing in the cold he is completely blind to the fact that i realise exactly what hes doing. I will never understand how i can care so much about him that i cant protect myself from him.