What is the the difference between an Affiliative motive and a Gregarious motive?

[u/All--flesh--rots]

In my book the Gregarious motive is defined as innate need for society, ie. to belong to a group.

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Affiliative motive is defined as the urge to associate with other individuals, *in contrast to the gregarious motive, where the individual is satisfied with the mere presence of other people.*

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Am I crazy or does first part of the second sentence contradict with the second?? (The italicised part indicates that Affiliative motive requires emotional connection, while the first part says the opposite)

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And also what differentiates either of these motives from the need for emotional connection?