I hear that they tend to flop again when they start teething. My Nikko used to have them straight up and now he has one up one down. In the pic below he was about 4 1/2 months old (see my little Dumbo with the big ears
). He is 7 months old now and still teething so I don't know if eventually they will both go up. I am like you though and I prefer them floppy. They look so adorable that way.