"I am not divorced yet - this was just the decision that I got to after various unforgivable incidents"
Have you shared these incidents, your friends have been supportive, then you have minimised his behaviour and stayed?
I have ran out of empathy with friends who have done that, tbh. I have also not ran to them when they say that the relationship is over, until time has passed.
I have, when younger cancelled my plans and "been there" for friends, then they've gone back anyway. After so many times of doing that, you put yourself first. I have found that being a support doesn't change the outcome, it has to come from the individual.
I have had friends who paint a rosy picture of an idolic life, then want to critise their partner from day one, when they split. Without sounding harsh, what they choose to put up with, is for them to get over.
There is a limit to what you can give to others.
If that isn't the case then, they are obviously taking the stance of not getting involved and your not as close as you thought.