There's certainly a difference between the way Renee reacts to Elliot showing interest in Brun and Clinton showing interest in her. Renee knows Elliot, and trusts him, knowing he'd never do anything to hurt her, so she might actually approve of the possibility of Brun+Elliot. Clinton, as far as Renee is concerned, is just some random guy Brun met at work, about whom Renee knows nothing. So some concern on Renee's part is justified, but Renee took it to absurd lengths. I would guess that's what ticked off a lot of people on the forum about Renee - not the concern for her friend, but the ridiculous degree of overcontrolling that flowed from it.