Hi, unless you are a robot, those emotions are gonna fly. I am sure your husband is more upset at himself than you are. He knows he shouldn't have chewed tobacco. And he's never going to forget it. He is probably so scared and angry and a million other things. You and your children are probably scared and angry and a million other things. All I can say is... one day at a time. That is how this disease goes. It is a sad reminder of how important little things are.
You are going to be his biggest cheerleader. Try not to take things personally. Breathing is also a good thing. Hang in there. You always have this wonderful site as support. I wouldn't know what to do without it. Good luck.