Is there any recommendations where both of them like each other but they don't know that t...

i would recommend hardcore vanilla it's not completed yet though :)

Both had Unrequited love to each other
http://www.mangago.me/read-manga/spring_snow_odongtong/
http://www.mangago.me/read-manga/motomete_yamanai/
http://www.mangago.me/read-manga/intense_lee_kyung_ha/
http://www.mangago.me/read-manga/sensei_no_sensei/
http://www.mangago.me/read-manga/futari_de_papa_hajimemashita/

Definitely start with this one
http://www.mangago.me/read-manga/spring_snow_odongtong/

Check out my “Bith had unrequited love to each other” for more
http://www.mangago.me/home/mangalist/622487/

im also waiting for a responsee yeeee

thank you guys!!!! ^^