She Keeps Checking Her Phone
She might have an obsessive-compulsive thing with knowing the time. Or she is expecting a life-changing phone call. But in that case, she would tell you about it. Odds are that she’s just looking for a distraction because you’re not interesting enough.
If she’s just checking up on messages while you go to the bathroom, that’s fine. But if she’s continuously chatting with other people through Facebook, Whatsapp or texts, that is … not so fine.
Is she constantly keeping one eye on her phone and paying more attention to it than to you? Then don’t be surprised when she goes home with her phone instead of with you.