It could mean nothing, but on certain paths Els has some of her first possible "interested in girls" points in the last update, all of which involved conversations about Vi.yeaah, that ain't happening with those two. Some other combination maybe, but not this. Els, while not jealous, she is possessive, don't see her being cool with someone else being with them.
That aside, I could see something possibly coming of that rivalry. Not any time soon for sure, but maybe later. Of the potential planned throuples (of which there are currently two, but were originally three), Vi+Ines is the most obvious, but after that I have Amrit+Ines and Vi+Els as my guesses.