I think you have to let her have her own feelings and discuss them in her own way. If she says she's fine, doesn't matter if you think she is not! She doesn't have to talk about her feelings if she doesn't want; they're her feelings.

I can understand that she would have a hard time getting over a fiance that lied and cheated on her and think other people were doing the same but that too is her problem and, since you don't mind that she thinks it about you, that's even better. If your being away from her/at the library triggers her and gets her into a funk, she has to learn to get herself out of the funk, you can't do a whole lot for her there but be yourself and comfortable with yourself and with her, however she is.

If you feel Gina is not listening to you and you want her to, you have to tell her, "Hey, it feels to me like you're not listening and this is important to me!" You have to check your idea of whether she is listening, or self-involved, or reciting nonsense verses in her head :-) with her!