Sweetheart, you are protecting your little ones. You are protecting them by getting help and looking after yourself, and so making sure that you can have a happier future together. 
But you are dealing with a hell of a lot at the moment and I can't begin to imagine how threatening and frightening that is for you. You are doing incredibly well.
"they said they'd know if i ever told anyone". I'm no expert, but that makes me so
and
. They hurt you, terribly. Then they told you something that made you feel 'safe', as long as you never told anyone, and never got any help for yourself. How DARE THEY???
You have now started to challenge that and that took so much courage from you. Can you look at your first post here? You sounded so sad and at the end of your tether. You sounded as if you had reached a point where you really needed to start to look after yourself and to get help, so that you can help your little ones too.
You shouldn't have to manage all of this on your own. There are people out there who have been through similar experiences (you may even meet someone on Monday) and who will tell you that they have been lied to, like these men lied to you. It's part of the sick game they play, keeping themselves safe, no matter what it does to other people.
From what you say, is this the first time that you have told anyone about this, apart from your dh/close family? Taking a step into the unknown like that will have taken you away from some of the things that have made you feel emotionally safer. Remember, you are now starting to take control of things in your life again. You are starting to make decisions. If you can go to the group on Monday you don't need to talk about what happened to you at all, until you are ready to do so, but you can listen to others and may find that they have been lied to like this and that they were as scared as you feel now. It's something that you can talk to your psyke about too.
I wish I knew more about these things to help you - I am sure there are other mumsnetters who are far more experienced than I am - but I think that you are amazingly brave posting here, and hope that my thoughts help a bit.
(Sorry, I do go on, don't I?!)
Thinking of you.