My DP quit smoking about 18 months ago and I was delighted as his teeth and breathe really suffered from it plus I hate the smell full stop.
Anyway he had a smoke every so often but after a chat about my weight he expressed a desire for me to try and cut back on fatty foods etc. I agreed and even joined the gym but in return asked he stopped the occasional cig and quit all in. He agreed and I thought that was that for months until we were at a festival over the weekend and while I was away helping a friend unload his car I came back to find DP had went to the toilet. I went to the toilet to meet him and caught him smoking. He had not only betrayed me but tried to hide it and even got my friends to cover it up... I was soo upset and stormed off. I didn't speak to him all night and the next day he made jokes about it and said he couldn't understand why I was over reacting... AIBU?