Responses
Was it an omegaverse? it could be Kiss Me Liar but it was harassment and assault from the "friends"
https://www.mangago.zone/read-manga/kiss_me_liar/
or may be it's Run Away Assistant Manager Ha
mc wears this nice red suit and gets hit on by ml's model friends BUT one of them sees a kiss mark and slutshames him
https://www.mangago.zone/read-manga/run_away_assistant_manager_ha/
Help me Find this BL manhua but I really only remember this part of the story, it's when the Uke got invited I think to a Party and the Seme was also there and The Uke got Humiliated because of the Seme's Firends, that the only thing I can remeber about it or mayba I'm just being delusional on reading that