Slopper’s nervous demeanor despite Travis’s generosity makes it clear that something is wrong. Wab's unwillingness to accept Travis's apology shows that as far as she's concerned, Travis's complicity with the men who hurt her (and, by extension, with the government who wants to profit off of her body) is too grave an offense to forgive. Wab has to live daily with the knowledge that people can say one thing and mean another, suggesting that Travis will need to show he's sorry rather than just say it.