Princess Bliss Curse on hold

Bliss Curse from the outside seams like a normal 18 year old right
Wrong ! because her parents run kingdoms as in 2 !
Her mother and father are the Queen Of Good and King Of Bad.
And they could never marry for that reason but nobody knows except them 3 that Bliss exist.
because if anybody found out that she did
it would mean World War 3.
So what happens when you are Princess of good and evil??
and just happened to fall in love with a human?
and that human is suddenly asking about ure parents?
Whats a princess to do?!