I know all about emotionally difficult, draining families, and you have my complete sympathy in that regard! I have to keep reminding myself that I can't control them, or make them who I want them to be, all I can do is control myself and who I want to be, if that makes sense? So try to manage our relationship, manage my reactions, how I allow them to make me feel.
So, focus on the positives. You had the wedding you wanted, and the majority were thrilled for you. Your family threw a hissy, which is sad but point one still remains. Now decide on your reaction. You don't have to decide now, but think about how you want things to work going forward. Apologise on a ltd basis for your actions, not for getting married but for not telling them, but reinforce that given you assumed that they wanted you to be happy you had expected, or hoped that they would respond accordingly. Then you are on a level playing field and when you feel ready you can decide how you want to move forward with the relationship.
I decided to work on my responses. Not let the automatic, all consuming guilt take over if I stood up for myself for example. Not to leap to respond to every communique (my mother would be emailing backwards and forwards all day every day for example) and try to distance myself slightly to try to reinforce that I am an adult, a seperate entity in my own right with her own family. Not feel pressured to include them in all our decisions because we're both mature adults etc. Because that was appropriate for the issues I had...your course of action may be different.
Sorry if this doesn't make sense, am on my phone and reviewing is harder!