it's been over a year since your comment, so you might have already read this or are no longer interested, but if you are here's a recc that has some similar aspects/concepts to this manga:
~Secretary Jin's Confinement Diary - uke is (secretly) happily kidnapped and confined; some S&M/BDSM
there's also this one, which strays from your 'stalker takes care of them' request but still sort of falls somewhat within the feeling of the manga you commented on so it could interest you as well:
~Cozy Obsession - uke knows how 'the story' ends and decides to make it a happy ending; Omegaverse (a bit unique)
--both have transmigration/isekai-ish aspects as well
happy reading~ (=・ω・=)
OOOFFF TYSM!!
OOOFFF TYSM!!!
you are very welcome!! ヾ(❀╹ ∇ ╹)ﾉ~
More story reccs like this where the stalker takes care of them BLZZZ