Thank you Pogre for your insight. Some friends might be more focused on his reaction, but even those who don't know about his reaction (he only told his family about the infidelities, not his reaction) are not condemning me.
I realize that desiring a stronger reaction to my infidelity by friends/family is selfish thinking. Maybe I just want justice for myself. I want to focus on BS's healing first and foremost, which is why this situation has made everything so much more complicated. Some mutual friends have distanced themselves from him because of his reaction, which breaks my heart because I want him to have more support during this difficult time but I know it isn't my place to ask friends how to feel and react to all of this information.
BS wants to reconcile. He says he has already forgiven me - another thing that worries me, that he says he forgave me within a few weeks of my confession. I wonder if he is rugsweeping?
The reasons many friends/family are minimizing my infidelity is because "it was so long ago", "you aren't that person anymore", "you've been a great girlfriend/wife since", etc. While these things may be logically true, they don't change what I did, and the fact that I still did not confess until recently, which still shows a major character flaw. Also, have I just been a great girlfriend/wife for the past decade because of my own guilt and not because I am actually a good partner? More questions to explore with my IC.
To answer your questions about my husband's remorse - unfortunately, in the weeks we attempted R, he was not very remorseful. He made statements such as "I was drunk", "it wasn't as bad as your A", "you didn't show me a lot of attention at the time" etc. I worry I fed these feelings because I was drowning in guilt and shame, and agreed that his actions weren't as bad and that we should focus on my A. However, the last statement is not true either because during our marriage, there were many times he was distant and pulled away from me, and told me he may want to explore sexually with other people and wasn't sure if he wanted me. He would not communicate while he was on tour for work, and I would beg him for more communication. There were even times he took off his wedding ring. But I was always 100% invested.
Regarding his remorse about his reaction - this is also a sticky point. Once our friends got involved and pulled me out and tried to explain how his actions were abusive, BS initially said he would go to anger management and therapy. Then we tried to R, and he slowly started turning back on this, saying he didn't need anger management, he just had an angry response because of trauma, and that our friends were overreacting. Now that I've told him I don't think we qualify for a successful R and I think our only option is D, he is now more open to anger management but still doesn't necessarily think his reaction was abusive.
All this aside, I will remain in therapy for a very long time. I unfortunately have many other things to unpack from my childhood such as physical, emotional, and some sexual abuse by my mother, and other related events that contributed to my "why's" for my A. All of which I have avoided and suppressed my entire life. I vow to do my best to never hurt another person in any way again, and I sincerely hope my BS will work on himself as well. I will never stop loving him, he will always be my family.