While it's not a popular opinion, I truly believe that this is the best time for Utah to make a move. Kaoru is lonely and confused, and Utah is the only person who is there for her right now. She can go be her savior and fix her. And while that is not the ideal way of getting someone to fall for you, there are many love stories that starts from a situation like this.
Utah cannot stop loving Kaori, that is something we have to accept. So I will just support her in chasing Kaoru until we can finally get the yuri we deserves. They can start from a messy love story and just make it beautiful later.