OO SUREE, not all are quite good quality or completed but they are in the genre of yandere:
Infatuation by AspenGlen: its a game made from a wattpad story, its completed with atleast 4 or so hours of completion if you read slow (I enjoyed it a bunch^^)
link: Infatuation by AspenGlen (itch.io)
My boyfriend by NUU-pro: it's like ybf but instead your the yandere in short, theres only a day 1 rn
link: MY BOYFRIEND by NUU-Pro (itch.io)
MONSTER X MEDIATOR by HeadLocker: THIS ONES PRTTY POPULAR SO YOU MIGHT HAVE PLAYED IT but in short you are hired to a hotel and all your guests are monsterss
link: MONSTER X MEDIATOR by HeadLocker (itch.io)
Yandere Island by Mari0w0: its pretty self-explanatory by the title, but its about your boat being struck by a rogue wave and you end up stranded on an island but your not alone
link: Yandere Island by Mari0w0 (itch.io)
do not kill me jacob!! by boredbradley: this the is second/extra part of the previous ver, they're both technically the same the newer ver just had more content. you don't need to really play the first one tbh.
in this you are part of a band and you need something for it so you sneak into your friends neighbors house and get taken by him and held captive until further notice. (hes a goat man btw !! incase your looking for just humans skip thiss lmao)
link: Do Not Kill Me Jacob!! Extra by boredbradley, Very_Bixarre, soundskies (itch.io)
The stranger from the bus stop by Daijubudef: you meet a creepy cute guy at the bus stop ^^
link: The stranger from the bus stop by Daijubudef (itch.io)
Splendors halls by Roseworks: this ones a fanmade game of the splendor man, they have a whole bunch of games about the splendor brothers.
this game the other branches aren't specifically romance? but this one kinda has a suggestive ending ig? PS. this one lags a lot if you have a laptop like me (windows 11)
[edit: this games also not rlly yandere?? but he doesn't want you to leave and if you squint theres some yandere romance in there ^^]