After the NYT op-ed by the anonymous official about resisting Trump from the inside, she wrote one in response in the WaPo about how that's disloyal, and if she has a disagreement with Trump she tells him to his face cause he's mature enough to deal with conflicting opinions.
There were leaks that Trump was pissed cause he saw "sometimes I disagree with the president" as a stab in the back, because of course he did.