I agree with you, personally I don't see her as hostile at all, the contrary I would dare to suggest...
Maybe it's her ( more apparent than real imho) snotty behaviour, the "I'm the Princess of the Syl-Tel Quessir I was born to rule etc etc..", I honestly find it more funny than anything else, also the scene at the dinner with her looking at Orion after the "shocking" revelation he and the girls are toddler was hilarious... and she also looked pretty intrigued to that thought...
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And let's not forget she didn't vaporized him after he called her "Caly", she's definitely the more slow build of all the girls, remain to see how and if she will become another LI ( though I sincerely hope so).