hi!! any manga where the guy has to pretend to hate the girl to protect her or because he doesnt think he deserves her would be great! i'd prefer shoujo but josei is okay, or really anything with a female lead! (✿ヘᴥヘ)

Probably this one; but she is very delicate, so i am not sure if it really fits ...

[Cat and Dog (PARK Hee Jung)](https://www.mangaupdates.com/series.html?id=128470)

Their Love is somewhat complicated, because of f. e. his exgirlfriend. She is fighting a quite "silent" fight for his love.

Toukyou Tarareba Musume
Shinigamihime no Saikon
Super Secret (he doesn't pretend to hate her, but he pretends disinterest)

I also have a few additional recommendations if you're interested in the reversal (shoujo/josei with a female lead pretending to hate the male lead).