unfortunately, i can only give ones where the seme secretly knows or comforts the uke, not when he’s suffering in silence. :(
1. yatamomo (manga)
momo is addicted to alcohol, smoking, sex and gambling and is overall a good-for-nothing adult. he has tons of unresolved trauma.
2. chiya’s just an unstable guy (manga)
chiya is a socially awkward, shy and depressed guy. whenever he has his lows, his caring boyfriend is there to lift him up.
3. mayonaka no ore wo mite (manga)
nso but yaoi..?? the uke is a vtuber streamer who is extremely unconfident in himself, hates himself, plus he has a crush on his manager. the seme is his manager, who secretly is his biggest fan.
4. koisuru psycho no shirayuki kun (manga)
there is no smut here. but shirayuki is literally a psychopath obsessed with haruki, but haruki has 0 idea. 0 idea that shirayuki kills for him, 0 idea of shirayuki’s past, and 0 idea how far shirayuki’s obsession goes
5. immoral sex (manga, oneshot)
the uke is a total shut in. he cuts himself, posts online, and just wants to beloved. he gets himself a toxic boyfriend whos only really there for the sex. he mistreats the uke, shames him for cutting, but he doesnt know the tables are about to turn :)
i hope i could help
Yaoi where uke or seme is facing loooots of internal issues but doesnt tell the partner? Basically suffering in silence kinda thing. Preferably uke suffering in silence but idm seme too.