Johnny Galecki Reacts to Kaley Cuoco Saying She Doesn't Remember Life Before Husband Karl Cook

Over the weekend, Kaley Cuoco shared a sweet anniversary message to her husband, Karl Cook, on Instagram, writing in the caption that she can’t remember life before him. Well, that’s when her ‘Big Bang Theory’ co-star and ex, Johnny Galecki, jokingly hit up the comments to write simply, ‘um.’