I think after not seeing each other for so many years, they still have plenty to catch up on whenever they talk. She has fallen asleep and cried while talking with him, too, especially during some of the later events of Dawntrail where some of the familial trauma themes just... caught up with her.

bonus points for G'raha being like "no, I'm going to trap it under this cup and take it outside" while she's crying behind a locked door and on top of a chair or something. Saved two separate stars and averted a calamity but can't stand Bug With Many Legs