One of the best things about this season of Younger has been Diana's (Miriam Shor) sweet romance with an earnest plumber named Enzo. Despite coming from completely different backgrounds — she's high maintenance and he still lives with his mother — they seemed like a perfect fit. But as Season 5 comes to an end, it looks like their delightful relationship has, too, and we are not okay!

In this exclusive sneak peek at Tuesday's finale, Diana reveals that she and Enzo got into a fight and he's no longer answering her texts. "We may have come to the end of the road," she grimly tells Liza (Sutton Foster) in the video, slowly accepting that this may be it for their relationship. "It was fun but it was doomed from the start. And we were kidding ourselves to think otherwise."

Say it isn't so! While we don't know what the fight is about, we hope this is just a small quarrel and that they can work things out. Despite their differences, Enzo and Diana were the real deal.

Elsewhere, Younger's season finale will have to answer the major question of what happens now that Liza has accepted Cheryl's (Martha Plimpton) offer to leave Millennial for Plaza Publishing. Will she actually go through with it? Plus, it looks like Josh (Nico Tortorella) is thinking about starting a family which may not end well given that he's still not over Liza.

See how it all goes down when Younger's Season 5 finale airs Tuesday at 10/9c on TVLand.