Thank you for responding. Everything you said is exactly how I feel. At certain points I felt like I was in the Twilight Zone, and I really did believe at one point that I WAS the one to blame. After couples therapy and a lot of heart to heart talks, I know this isn't true. This is on my SO, he knows that, and he is doing what he needs to do to make things right.

At this point, I just tell him that I am 100% focused on fixing OUR relationship, I don't have the time or effort to worry about the one with his family. I just know at some point, I want to move forward, and to lose the anger Im holding. I just don't know how, or even if I ever will. Again, Thank you for your response. Its much appreciated.