Frustrated

My husband is going away next weekend for 3 weeks to visit his family and take his sick mother back there. So this is our last weekend together before he goes and last night he was being a real jerk and talking rudely to me because I forgot to ask something at the drug store when we were buying something. To start I forgot because he had distracted me which isnt my fault. Then at night he wanted me to bring up suitcases from basement for him to start packing and I was being lazy and didn't really feel like doing it. Then he realized the drug store thing and wanted me to go back to the store right that second and go ask the question...it was about the expiration date of some skin care products hes taking as a gift. Anyways because I didn't feel like doing it right then especially with his tone well now hes ignoring me. I also cut up his cigarettes last night to get back at him plus I'm always on his case to quit. Last night he slept on his own and when I tried confronting him he got more mad. I just dont really get this childish behavior from a 40 yr old. I have been taking care of his elderly mom for the last 9 months and now all of a sudden shes having dementia problems and I have always been there for him in the er to finding her drs. And I have a full time stressful job and my own mothers sick from radiation complications from cancer and I don't show my anger orcstress on anyone. Sometimes I really feel hopeless when he acts this way.