Cubs Fan

Answer: Heads Up, developed by Ellen DeGeneres. I believe it originally began on her talk show with the use of index cards.

Cubs Fan

Chosen answer: She figured it out from what he did say. Since their engagement is a relatively recent development, it's an easy deduction that the shock of such a huge step in their relationship is what knocked his mother for a loop.

Cubs Fan

Chosen answer: It's probably nothing personal, but with the combination of his IQ and his superiority complex, along with the fact that they study in the same field, Sheldon just feels that Kripke is beneath him as a scientist.

Cubs Fan

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