Any recommendations where the uke/seme is in a unrequited love with someone but decides to give up and fall in love with someone else. But the unrequited love interest starts wanting them back. Idc if the unrequited love interest is the ml or not
https://www.mangago.me/read-manga/back_to_school/
https://www.mangago.me/read-manga/hate_mate/
https://www.mangago.me/read-manga/ways_of_parting/ not unrequited love per se but when the uke moves on his ex starts to want him back
https://www.mangago.me/read-manga/cosmic_boy/

Can anyone recommend me some toxic straight manhwa with red flag mls? Something like Cry, or Better Yet, Beg
I'm more of a bl reader but have an advice. Try the all genres from drop down list of 3 bars on right side. You can tick psychological josei. You get recs there, I personally click on updates filter below to see new upcoming ones a particular genre.
Or you can also scroll down on Something like Cry, or Better Yet, Beg cover page and find recommended lists from same genre, then go to the lastest page of that list. Hope this helps!!~(▰˘◡˘▰)
"olgami" maybe(?)
"her merry psycho" also(?)
https://www.mangago.me/read-manga/classmate_writers_scans/
https://www.mangago.me/read-manga/for_your_murder/
https://www.mangago.me/read-manga/love_song_for_illusion/
There's one called Try Begging.
https://www.mangago.me/read-manga/try_begging/ here's the link :)