wait my brain totally forgot that they only met when she moved to nyc, she's a canadian. she would know about her then but wouldn't have been mean to her or anything, especially if she didn't do anything wrong and it was simply the distance. she would know about robyn definitely, let's say she ran into robyn after visiting his apartment for dinner or whatever and stared at her for a good while then simply went ohhhhh! hey! and the rest was history