If this really isn't something she intended, it could mean a lot of things. An old trap she forgot, or the result of how she feels. Resonance between that place and you. If it's like the games, at the beginning, and not so much a place as part of her . . . you might have broken a wall you didn't mean to, between what's hers and what's not.
She's not like the others. Things like this . . . they are her mark. But what that means . . .
[Just . . . shakes her head, searching though ruffles for a familiar length of cloth, and wrapping it around his thumb and hand.]
For now, just . . . be a bit careful around Monoceros. And talk to them, if you need to. They're hers too.