In an episode of How I Met Your Mother, Marshall addresses the following sentence to Kim Kardashian: "You're right, super hot lady who my wife keeps telling me why you're famous but I keep forgetting."
This sentences sounds technically "incorrect" - usually when there's a relative pronoun like "who", the antecedent is not restated. E.g., we'd say "lady who is famous" rather than "lady who she is famous." But in Marshall's sentence it seems like there's an overabundance of subjects.
I myself probably use similar sentences regularly, simply because in English it seems that there is no good alternative. Is there a better way of stating Marshall's sentence? Any insights into this type of usage?