Was going to post this in AIBU but I'm going away and can't check replies until Sunday, so here it is C&P:
DP and I made a pact (admittedly at my suggestion, but he agreed with seeming enthusiasm) that I would get some more exercise in exchange for him giving up cigarettes.
Yesterday he didn't smoke and I was so happy and thanked him. He came home five minutes ago reeking of smoke and breath mints. How stupid does he think I am?! He's done this before then been surprised when I can smell it 
Seems yesterday wasn't him making an effort, just him not fancying it, whilst I have been plugging away trying to lose weight.
We're about to go away for the weekend (I should be packing) and I don't want to start with a fight and I hate sounding like a nag but I'm just so annoyed.
AIBU? None of his friends smoke - it's something he does alone at work. I have never smoked (I have no willpower and don't think I'd be able to quit). But he had quit before we met and started a year ago following a family bereavement. Should I stop asking him to quit? He smokes so heavily (outside the home) that it's hard to brush off. Have any of you tried tactics that have worked with your DPs/DHs/relatives? I'm beginning to get a little sick of it.