Did Amy and Leonard prove they could be friends?
That was revealed on The Big Bang Theory Season 11 Episode 13 when the pair worked together during science experiments after she kicked Sheldon out.
Meanwhile, Bert the geologist replaced Wolowitz in the band Footprints on the Moon, and Wolowitz was less than impressed with it.
Also, Sheldon found himself working with Penny and the pair found a surprising source of scientific inspiration.
But did it bring them closer together?
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.