You have an excellent point and truthfully that is where I am lacking in this relationship - open communication with her. I can express my concerns and happiness with my husband, but I still need to work on expressing my concerns to her. I can express my happiness with her, but when it comes to anything negative I freeze. Definitely something I need to improve.
"The relationship is still a triad in terms of emotions... " - This has really helped me put it in perspective. Thank you.
I am confident that the three of us can overcome these initial speed bumps and develop a healthy and happy relationship, its just going to take some work on all of our parts.