these are angsty and fluffy in same time:
sec. story (ch.3)
http://www.mangago.me/read-manga/fuson_na_hana_o_aisureba/
http://www.mangago.me/read-manga/sagatte_omachi_kudasai/
http://www.mangago.me/read-manga/konbini_kun/
http://www.mangago.me/read-manga/koi_no_mannaka/
sec. story 105-181 ch.4-5) Roommate
http://www.mangago.me/read-manga/hokenshitsu_no_target/
Yaoi:
http://www.mangago.me/read-manga/500_nen_no_itonami/
http://www.mangago.me/read-manga/hana_no_miyako_de/
http://www.mangago.me/read-manga/boys_love/
http://www.mangago.me/read-manga/paradise_view/
Shoujo:
http://www.mangago.me/read-manga/kono_oto_tomare/
(It's sad, yes, but , laugh-while-crying kind of sad?)
Are you fine with BL novel? If you do, then I recommend Cold sands.
I'd prefer the genre yaoi or shounen ai but I'm fine with shojo. I just want to get drenched in feels right now. I need something sad or angsty or something so fluffy that will make my heart squeeze into a million knots.