I say, and with God's help: It is better for you to be patient with him, to be affectionate towards him, and to urge him to abandon the sin of smoking and to commit fully to prayer. This can be done by explaining how I can live with a man who finds comfort in smoking and similar habits. As for prayer, it involves bringing him closer to religion and making it dear to him, as it is the path to salvation. And whoever fears God, He will provide for him from where he does not expect. We want our sustenance to be lawful, and this cannot be achieved by neglecting prayer. And God knows best.