Ok she started to sound genuinely upset, so I picked her up and she let me bf her to sleep. Yay.
I have no idea what to start doing to try and change this terrible cycle.

I'm really just not coping suddenly. All this sleep deprivation has caught up to me. Last night, after being awake dealing with DD for 3 hours, I just put her in her cot and started bawling. DH woke up and told me to "stop crying you stupid woman."
I wish he would just help me once in a while.
During the day DD is constantly tired,and I'm so dazed and zombie like that I can't even play with her properly.
This sleep problem is destroying everything.