I’m also thinking the same thing as well. Maybe they might be interested in each other at some point before the shard hit her hard so that is why we’re seeing this memory or scene of them chatting at night right now.

(She continues to watch the scene vigilantly, hoping that the black shard didn’t affect the scene they are seeing to some degree. The Snow Queen seems to be very happy in this one compared to the horrified expression she has in her face during the Candyland dreamshift or in her current comatose state.

For now though Isabela could only make guesses as to what she and Jack saw in each other that might have caused them to fall for each other.)