Normally I would warn you away from the Ethical Slut but because you are both opening up and admittedly you are looking to play the field...I hold a lot of respect in your honesty by the way..then I think it would be good for you. When you read it, think of it from your perspective and how you want to achieve your relationship goals. It is not a book for those trying to deal with a one sided open or poly relationship in my opinion. It is however the most popular self help book for those looking to open up for themselves.
I must admit I have little to offer in regards to your situation but I wish you the best of everything and thank you for being so honest.
Peace and love
Playing the Game of Life with Monopoly rules.
Monogamy might just be in my genes
Poly Events All Over