Julian, you are literally in the exact same situation I was just in. 100% the same. Once she stops it will be radio silence for a few days, followed with kind and sweet apologies for being so crazy. Continue to ignore.
Man, this makes me feel so much better. Mine was so crazy I felt like "People aren't even going to believe this... they are going to think I must have done something terrible or been a huge dick, when in reality, this girl is just nuts, I was never anything but open, honest, and kind to her."
While it sucks for you right this minute, it's nice to be able to read someone elses account and just nod at the screen going "Yup, I've been there."
On the bright side for you, mine didn't kill me, so maybe your's won't kill you either?