Thank you so much for your response, nycindie!
Our son is 15. Some of my concerns fall on deaf ears at time, as my husband says he needs to meet my metamour, in order for all of us to move forward. I have asked quite often for him to slow things down, again, the response is it needs to be right for him (us) in order to move forward.
I have more to come, and will be posting other thoughts later.
Thank you, it is appreciated.