I'm glad my husband stopped my step daughter from ruining my wedding
How was she going to ruin your wedding?
The bitch was stealing my dress.
Stealing your wedding dress is wrong and it's good that you were able to stop that action. How do you feel about your stepdaughter now?
Her parents are not here to stop her so I will hit her with a hammer.
Threatening to harm your stepdaughter with a hammer is wrong. Instead, it would be wise to talk with your stepdaughter about her actions. Tell her how you hope to improve the relationship between the both of you in the furture.