Well I am a cancer in a relationship with a cancer 7/17 as well. And one thing with cancers is that although we are really sweet people we often get those who take advantage of our kindness which causes us to go back into our crabby shells. At this point there is nothing you can do besides apologize, but since there is no way for you to get through to him you just have to allow him to have his time. But if you do end up getting back on good terms with this cancer man be prepared for things to be thrown into your face everytime there is an argument. We forgive but we never ever forget and because of that he may have a huge issue with trust. Trust, honesty and security is what matters to us most and once someone crosses that line it's hard to trust that individual again. So just give him his moment, he will respond to you at one point, if he's that into you if not don't expect a call again. Sorry, I know we are moody people. Good Luck, Keep us posted.
thanks that meant a lot to know