Welcome to our forum.
Sorry to hear your last poly relationship ended; I'm glad it ended on an amicable note and that she has more confidence and that.
Sounds like you and your wife have a good relationship and are in agreement with each other and on the same page. Three years is a fair amount of time to have an open relationship.
Glad to have you with us.
Love means never having to say, "Put down that meat cleaver!"