Should i stay?

ok this is going 2 be longwinded i'm sorry. My husband is depressed at the moment and we have had a few problems but one thing that's come out is that the last 3 years he's been telling me he's quit smoking but he's been smokin @ wrk and i've been askin but he kept lyin n we both quit because i was pregnant. He's now smoking all the time and i hate it i h8 the way he smells his breath is rank although he doesn't come near me or the kids 4 half an hour after he still smells and i can't stand his fingers near me 'cos they smell 2 and i can't help but think of them as dirty. He did want to leave and i didn't want him 2 but we decided to try again but i'm finding it increasingly difficult to deal with i'm sorry if i offend any smokers or come across as horrible but this is a big thing for me i love him n i don't want to lose him but on the other hand we have no life no money cos we already used up every penny of our money and i'm allways lukin after the kids on my own wot shud i do?