Not what you're looking for, but if you don't mind yaoi and like characters pretending to be weak in front of their crush, give this a try:
http://www.mangago.zone/read-manga/kawaii_akuma/
I loved it! Thank you for the recommendation.(≧∀≦)
I'm glad you enjoyed it! Ogeretsu is a pretty popular mangaka so you might've already read these, but if you haven't, I think these two have someone pretending to be something they're not:
http://www.mangago.zone/read-manga/renai_rubi_no_tadashii_furikata/ (1st story)
http://www.mangago.zone/read-manga/koi_to_wa_baka_de_aru_koto_da/ (2nd and 3rd story)
I am looking for a manga that a boy acts like he’s weak in front of his childhood friend that is a girl and at times he gets defensive but I remember specifically about a part where she wears make up for the first time and he called her ugly but he didn’t mean it.