Sis, hindi ka OA, ang gut mo ay may point, lalo na na may hidden group chat pa involved dyan, which is sus talaga. It's one thing na mabait sa coworkers, pero ang pag-monitor kung nasaan ang girl coworker at ang pagbibigay ng jacket sa isa, combined with the secrecy, would make me uncomfortable din honestly. The fact na tinawag ka niyang OA instead of explaining himself ay kinda dodgy, healthy partners usually have that conversation openly kaya siguro worth mo i-sit down ulit with him, but this time be calm and clear na it's the hiding na bothers you, hindi lang the friendliness, kasi that's fair grounds para mag-worry.