Welcome to our forum.
Sorry to hear about the recent relationship SNAFU; I hope you and your partner can get things sorted out. You will definitely find a lot of good information here, as well as opportunities to interact with other poly folks and make new friends.
You've read the two most recommended poly books, so you are off on the right foot in that area. You just need continued practice at communication (speaking and listening) so as to avoid future misunderstandings. You might consider doing a tag search for "communication." (The search menu is at the top of the page, with tag search in that menu.)
Anyway, I'm glad you could join us, and hope you enjoy your time here.
Love means never having to say, "Put down that meat cleaver!"