Yeah potentially an MLM, religion or cult. The initial introduction has parallels to "flirty fishing" [1] and "love bombing" [2] which are known cult tactics. The extreme end of that is sexpionage but the early side of that is finding a single male that may have some money or influence and using that to corral them into their group, whatever that group it. This is extremely common in espionage as well if anyone works in highly sensitive or technical areas.