camping! seems interesting ヾ(☆▽☆)
not sure if this is it tho
https://www.mangago.me/read-manga/trash_omega/
OHHHH THIS might be it , but theres this panel inside my mind that I cant forget and it was presented in a comedic tone like the ex gf was drawing and she was cursing the uke that he gets isekaid in a bl manga and im not even sure if this panel was real or im just imagining things.
maybe that's not it. lol I'd use the tags and go look for it. you're probably not imagining it, it wouldn't stick in your mind if it isn't.
yeah thank you QUQ
Welp, didn't find it tho I've had my fair share of isekai bls. Keep reposting tho. Other might have read that
manga where uke was isekaid by his ex gf to a yaoi manga because he treated her badly, his ex gf draws BL and cursed him and he was isekaid