[@Letter Bee]
Have a look the image you used for Myst for christ sake XD It just screams creep to me :lol She has had her own experiences with creeps as well. (Also Vesta has paid attention to people when she talks to them. She generally goes to a quick conclusion about people as well. Like Kyle being useless, Zin being a perverted weirdo (not that difficult to work out XD), Heinrich being some strange being of perfection which sorta piques her interest but also creeps her out a little XD, Aleph being a delusional moron, etc.)
Let alone breaking down Myst's speech pattern, tone of voice, etc. if he spoke like he did to Nick. He creeped Nick out just fine, but unlike Nick who simply walked off Vesta will crush you with a boulder if you creep her out that much XD