Science investigates; religion interprets. Science gives man knowledge, which is power; religion gives man wisdom, which is control. Science deals mainly with facts; religion deals mainly with values. The two are not rivals.
Use 'I feel..."' statements. Basically start every sentence with 'I feel', for example: 'I feel disrespected when you yell at me.' The goal of this is that you cannot argue with how someone feels. If she still argues and tells you that you're wrong for feeling that way, then I'm afraid nothing will help you.