Welcome to our forum.
It sounds like you've been lucky in your efforts to explore polyamory so far. I'm sure you have many questions and concerns to field, and this is a good place to field them.
Kudos to you for adapting so well to your wife having a new love interest. Keep the channels of communication open and keep learning; you will come out okay; I believe that.
Glad to meet you here,
Love means never having to say, "Put down that meat cleaver!"