i think we do forget that kaoru really loves honoka and wants her to be happy, she doesn't hate elisha or think she's bad, she's worried that honoka after all these years of being so introverted and semi distant is going to lose someone she obviously cares about a great deal. how she's going to go about communicating this is going to be interesting based on the way we've seen kaoru play puppet master with people in the past.
(maybe kaoru is going to use her diverse series of flirtations to get straight to the top of japan's immigration department and get elisha a citizenship lol)