Just speak, don't bring a script
A lot of the stuff you have in that proposed script is awesome, but if you're reading off a paper, the conversation losses its organic feel. Moreover, the amount of stuff you have packed in there could span multiple conversations. Especially with a topic like poly, people usually take time to process and think stuff out; dumping it all at once might be a bit much. My advice is as follows: just speak, converse, do what comes naturally to you with this person and open up. You wrote (or typed, I guess) that stuff, and it's all floating around in your head. You don't need to have it physically in front of you to communicate it, just let it flow.