Raven's relationship with Hank in her world was... well, complicated was a nice way of putting it. She'd liked him, a lot, until everything went sideways and she walked away from Charles and the rest of the team to be with Erik. This was a different Hank, an older one who may have had a very different relationship with the Raven in his world. She knew that the version of her in some universes was not very nice.
Still, he was someone from their world and he was also blue which meant that she was in her natural form when she and Kurt approached his door. Since he'd offered to cook, she opted to bring a bottle of wine and a store bought pie, not wanting to show up empty handed. with any luck, this wouldn't be too awkward.