I concur, putting it on paper is not smart

Maybe you could write an outline and use it as a reminder of what you want to say,when you talk to someone in person, or maybe you could let someone read it in your presence but make sure to get it back. But I strongly advise against putting anything on paper and letting anyone keep it unless you're willing for the whole world to know about it.
It's a little late now, but I don't understand why it was anyone's business that you were a pedophile regardless whetehr they had children or not, regardless how much time you spent with them, or anything. Sure, you can choose to confide in a trusted friend, but they don't have any right to know, any more than they would have a right to know that someone was gay.

I am also concerned about some of the wording, which has implicatons I strongly disagree with. For example, you would have told them before their children were old enough for you to "have problems". Since when is love a problem?? You made arrangements to "keep them safe" by staying away from them or something, well I'm really sorry that you are dangerous to children but I resent the implication that children are 'unsafe' when a pedophile is around, in fact I strongly disagree with that implication and I find it insulting. If that's what you actually believe, tell us. Otherwise, don't even imply it in what you say to these people.