I was not judging you and I am glad that you were talking about wanting more, rather than wanting to fix something, in your desire for polyamory in your life. However, what I wrote about doing soul-searching, talking as much as you can about what you need, why, and how those needs can be met, having input from a third party like a counselor or therapist, and strengthening your commitment to each other in whatever way seems appropriate, and taking your time (and baby steps) to reach a mutual agreement, understanding, and direction BEFORE starting a relationship with someone new - are all still good suggestions (IMHO, anyway! LOL).
The world opens up... when you do.
Oh, oh, can't you see? Love is the drug for me. ~Bryan Ferry
"Love is that condition in which another person's happiness is essential to your own." ~Robert Heinlein