The Walking Dead: Dead City

Icon said

Maggie is having to come around to the realization that her, Rick and all the others didn't exactly walk a pristine path, either.

They killed their share of husbands and wives as well.

But no, they aren't "friends".....she currently views him as a necessary evil to get her son back.

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and also, without Negan, they would have probably never defeated The Whisperers, and he helped save Hershel once already fro the CommonWealth.
But Negan has genuinely changed as a person since he sat in jail all that time. they did an excellent job at showing this. I would love to see him and Rick together to see how that meeting would go.