I don’t really think we can criticize yeshivaguy for not asking. The common yeshivaworld-coffee room wisdom is that asking how thin-or-not she is, is wrong.
I heard a story about a girl who was misled about the guy’s age (he was younger than her). She found out after the engagement and almost broke it off. Not because of the age, because she was misled.
In general, if you don’t think someone will mind, you don’t have to mislead them.
yeshivaguy: I like the 24 joke