The first story of http://www.mangago.zone/read-manga/ouji_no_hakoniwa/ fits?
The author Fujisaki Kou has many semes that are possesive of the uke. The author has multiple mangas that revolve around a certain group of people and it starts off with Happy Yarou Wedding.
http://www.mangago.zone/read-manga/happy_yarou_wedding/
http://www.mangago.zone/read-manga/hanazono_no_kioku/ (this one fits, doesn't really lock up uke, but tries to keep him for himself)
http://www.mangago.zone/read-manga/sasayaku_no_wa_sono_yubi/ (everything you want)
http://www.mangago.zone/read-manga/fuson_na_hana_o_aisureba/ (1st story)
http://www.mangago.zone/read-manga/kowarekake_no_omocha/ (very possesive)
http://www.mangago.zone/read-manga/saihate_no_kimi_e/ (possesive, stockholm syndrome)
http://www.mangago.zone/read-manga/giglio/
http://www.mangago.zone/read-manga/zion_no_koeda/ (locked up, messed up)
http://www.mangago.zone/read-manga/samenai_yume/ (twisted)
http://www.mangago.zone/read-manga/yami_bl/bt/248426/Vol1_Ch10/2/
You can always look at the tag of "yandere seme"
May be you should try out 'Killing Stalking' or 'Warehouse
Guys, any recommended yaoi where the seme is totally insane and monopolize of uke and lock the uke up for himself??
Thanks a lot