People followed younger love interests that are also kinda suspicious page 1

Younger love interests (or same age) that also have a hidden agenda/side or just gives off some sorta vibe (not bad or good, just suspicious, doesn't have to be big, incorporates a wide range of suspicious activity):

- scheming/manipulative/calculative
- uses things/plans to their advantage
- honey/beauty traps
- disguised/two-faced/lies
- ulterior motives
- sadistic/teasing
- hidden feelings, pasts, identities
- obsessive/possessive/clingy
- knows mc's secret/something mc doesn't