A moment earlier, right before Declan said 'Let's break up' to Roxy, the man didn't know the girl's hand was holding a drinking glass. Roxy wasn't planning on gripping the drinking glass, but she needed something to grab onto.
Roxy refused to hide her hands on her lap, even though it was much easier to grip her clothes without being seen.
Roxy didn't want to look weak even though her current talker was Declan.
Roxy genuinely hoped in her heart that her instinct was wrong, and she was too paranoid.
The man had told her once that he was hurt when Roxy kept doubting his feelings. But today… ever since Declan picked her up in the Bali Sea, the man had done nothing but made her doubtful about his feelings.
That's why Roxy chose her glass of juice as the target of her grip while nervously waiting for Declan's response.
"Or... am I guessing it right? Is it a goodbye date?"
"That's right. Let's break up."
Crash!