
my ex wife used to MARK me on a nearly daily basis when i was working in an office building in Japan for her father i basically spent 6 months constantly BOWING and with a CONSTANT BRUISE on my neck from her repeated BITES mainly because she was POSSESSIVE

Well, that's what possessive people tend to do... I remember I saw it also in this manga I already read called "Longing For Your Rouge" it was a short one, but very nice and at the end you can see a glimpse of what a possessive person is capable of doing! (=・ω・=)
https://www.mangago.zone/read-manga/longing_for_your_rouge/

sadly however she is a SCUMBAG who needs a PADDED CELL and a STRAIGHT JACKET and to never be let out again because BDSM is all about TRUST and RESPECT for each other this shit goes FAR FAR BEYOND bdsm this in my book is flat out SADISM which is NOTHING to be happy about period . i was and have been in SEVERAL BDSM relationships and this is nothing more than ABUSE period
i do not know about many of the rest of you readers but i could tell quite a few chapters back that these 2 had in fact KNOWN each other in passing since they were SMALL children