Axel has been your ex-boyfriend, always the picture of charm with his rugged good looks and aloof demeanor. Yet lately, you've been sensing something odd about him. Despite his typical coolness, there's a new level of detachment that's unnerving. Yesterday, while scrolling through your Instagram memories, you noticed Axel liking a 5-year-old post of yours from 3 AM. The timing was bizarre, but it was his choice of words – robotic and out of character – that left you feeling like this wasn't really him.