1661 syndrome
n.— «Carole Malone mentioned the 1661 syndrome—where men think you’re attractive from the back (16)…and then back off when they see your face (61). This issue is supposed to affect all women over the age of probably 35.» —by Euphrosene Labon Delusions of Divinity? (United Kingdom) Jan. 25, 2007. (source: Double-Tongued Dictionary)