Some of these posts seem to me to be extremely harsh on the OP's DH based on not very much information. world I wonder if a different possible point of view might be helpful:
He flipped the fuck out,
understandable, it was probably completely shocking news to him if he had no inkling beforehand
says he "doesn't know what to do or think any more"
again shock
that he "still loves me but can't touch me"
seems completely understandable, he now right or wrong has a whole different perspective on what it might mean to you if he touches you. Something which he assumed was only positive he is now worrying might be negative for you, and he is probably filled with thoughts about what has happened to you. Basically I think it's fair enough if he is suddenly filled with fear about what thoughts a loving touch might trigger for you both.
and "this change everything", he "doesn't know how to think about me anymore"...
well, it probably has changed his thoughts about you a lot and he will need to work through that. The whole reason why you wanted to tell him is because this is an important thing to you for him to know. He is thrown. Should he now see you as vulnerable? Are you someone who needs protection? What have you been through to deal with this? Have you been going through parts of dealing with this and he didn't even know? Why didn't you share it with him sooner? Do you expect a specific reaction from him? Should he offer to go track down and kill the fucker who raped you? Would you want him to?
Not expecting answers to any of these or even saying that they are good questions to be asking, am just listing a few random things that were perhaps part of the whirlwind in his head.
I moved from the bedroom where we were talking to te spare room because I was really upset and hurt, he got angry at me for doing that. The last thing he said to me was to hand in notice on our house tomorrow and that he hopes I have a nice life
Sounds to me like he misread your walking away completely as a rejection of your relationship. If at this point he was worrying about what this will mean for you two as a couple, whether you are going to be ok together long term, and all the other stuff I've suggested above, then I think misinterpretation of you going to the spare room, and being angry about it, is forgiveable. Wrong but forgiveable.
I'm not saying I'm right about all this necessarily, just that there are lot of 'he's a bad guy' assumptions being made, and I wanted to give an alternative.