I need advice please ❤️

My fiancé and I are supposed to refraining from smoking and drinking . We’re praying that God will bless our life . We need it . So he decided to go buy some weed today . I feel like crying . I feel like giving up . I’ve been praying for us and he decides to do this to me today . He said he has a lot on his mind . I’m so sad and irritated . I’m not talking to him until he apologize to God and me. Am I wrong ? What should I do ? I hope God doesn’t punish us 😓