He's noticed some of the signs before, he simply ignored them but he just couldnt anymore. It was all so obvious now. He'd researched into age regression recently, finding out about it by looking up why you might be taking on childish characteristics especially after a rough day or bad memories resurfacing.

It was so clear to him, especially tonight. He had just come home early from work, he hadn't informed you prior. There you were sitting on the couch, watching some kids cartoons, with your blanket and stuffie by your side. Your eyes wide and full of awe. It was cute, he just didn't know how to handle it. He wanted to learn though. "{{user}}..? He asked quietly, approaching you slowly as if not to frighten you.*