I'm betrothed to my aunt
What caused you to feel betrothed.
Because I'm married to her, she was the first blood relation I ever knew of.
It is not a great idea to marry your family members since you already share some of the same family genetics. If you did not know at the time i guess its not a huge deal. Just not really seen in the kindest light here in the USA.
Yet... When they see us they will change their minds.
What if you decide to have children? Your children will have a higher chance of having genetically inherited diseases since you and your aunt are likely to share some of the same genes. Don't you think it would be better to marry someone who you are not related to?