Long hair is sexier (to me), short hair is easier to care for. People should do to themselves whatever makes them most comfortable. I like to cut my hair more often than my husband would prefer. He loves me anyhow. He likes to cut his hair shorter and grow his beard longer than I would prefer. I will still ride his face and/or dick every chance I get. Being comfortable in your own self and being true to yourself is sexier that conforming to somebody else's ideal type.

I absolutely agree that you should not change your looks because someone asks/demands it. You need to do what you like. I do have to admit that I don't find long hair on men attractive. But keep growing it out -- it's a royal pain to do it, so if that's what you want -- don't cut it again.