I don’t think anyone should pretend for shidduchim. Honestly, I think its what adds to the shidduch crisis – people are bending over backwards for somewhat ridiculous things…and not halachic things or even chumras. Just narishkeit!
My cousin was given the “grade B” girls in the shidduch world because his family is not as frum and they wont support and they are a little bit off the beaten path. The girl he is marrying was considered “grade B” and when my Aunt was checking her out they heard “Its a really nice family but they are a little strange because they like to go hiking.” Yes, someone shouldnt marry someone because their family likes a good walk. <sarcasm>