An indeterminate period of time has passed since Fred's stroke. Jessica's gung-ho "marriage, not a dorm" attitude has diminished to the point where she no longer feels she has to accompany Darin on his hospital visits. Fred's regained consciousness, but his speech has been affected by the stroke. TB's going to attempt to derive a chuckle from this situation by likening it to the communication gap between between parent and child. The difference, of course, is that Fred likely understands what's being said to him, but he's suffered a serious impairment to the part of his brain that allows him to speak. It's just one of the cruel aftereffects of stroke. And when this happened to my late Mom years ago, my family and I found it difficult, no, impossible, to joke about it the way Darin's doing. Kudos to him, I guess.