It is helpful to quit something with your partner.
Jacob and his wife are both smokers but Jacob's wife has decided to quit the habit.
Jacob wants to show his support for his wife's decision to stop smoking.
Jacob decides to stop smoking along with his wife to make it easier for her to kick the habit.
Jacob praises his wife's decision to stop smoking but continues to smoke around her.
Jacob's wife is encouraged not to smoke by his decision to also quit and is able to give up the habit.
Jacob's wife finds it difficult to stop smoking with him smoking around her all the time and soon goes back to smoking.