This article is pretty nonsensical, though, a reporter citing another reporter, one from Slate, whose own analysis cherrypicks to come to its conclusion.
For example, it highlights the line that Kavanaugh's argument cannot be taken seriously but leaves off that the opinion is referring to *two* arguments, Kagan's as well.
No, justices aren't losing patience with Kavanaugh, any more than they're losing patience with any other. Justices disagree, as they always have.
It's silly to put out such a muckracking story, except that it gets clicks.