Responses
https://www.mangago.me/read-manga/say_i_love_you/ (although i don't think the relationship was quite healthy from what i remember)
https://www.mangago.me/read-manga/fukumenkei_noise/
you might have read this but: https://www.mangago.me/read-manga/honey_lemon_soda/
Hetero stories where the girl is shy or gloomy/quiet? These are the only qualifications (づ ̄ ³ ̄)づ