Based on what I have read, most Muslims expect that their potential spouse convert to Islam.
Therefore, my suggestions and questions for that young lady are:
1. Does her friend insists that she converts to Islam, before they get married?
2. Will he allow her to practise her faith?
3. How will they raise their children?
4. Evaluate his character, and attributes (ambitious, hardworking, independent and responsible, non smoker, not into recreation drugs or alcohol, etc.)
If possible, and with respect, I would encourage that young lady not to continue the relationship, because it is more than family disagreement.