What did you find when you researched the references noted in the letter, which includes the USMA policy?
I am not trying to give you a hard time here, just habituate you to the idea that as an AD military member, you are responsible for knowing the regs and policies, and if you have questions or need clarification, you research your official sources and consult your chain of command. Anonymous Internet forum unofficial advice is worth exactly what you pay for it. If you choose incorrectly in the fraternization area, and find yourself at a conduct adjudication hearing, failure to know the policy or have taken steps to research primary sources is not a good choice of excuse. Guessing, assuming, or asking a buddy for their opinion also falls in that category. Once you’re clear on the policy that applies to you, you can choose to adhere to it or not, understanding there may be consequences for the latter.