So, i sought the council of my advisors. Two very important things were said to me in a very clear fashion.
one: she's not right in the head. crazy in the coconut. Will i get laid, yes. will the sex be great, yes. will my psychological well being be at risk, yes.
two: She's an ex of someone i know. will he be ok with this, yes. will I be ok with this, yes. if this should go sour, will it bring down bad ju-ju all around..... yes.

So, I have decided to not follow that trail. it's a bachelors life for me.