Do you think if the applicant says it is an arranged marriage it will be more of a bullit proof plan? because technically the parents both do have to agree on the marriage and the marriage can not be allowed to take place if the parents do not agree that their kids get married. however, the parents did not know each other before the two spouses met.
Do not over think. Tell the truth. If you try to design a bullet proof app by inventing stuff, you will make things worse.