I second No5no5's suggestion to talk to others close to you.
Without more information, it is hard to say if she may have a pattern of withdrawing into herself when she has problems or if it may be specific to this situation. By the time we are adults many of our reactions to situations are ingrained in our behaviours whether we are gifted or not. I agree that in some cases, the gifted may be or appear to be more emotional since some issues may resonate on a different level than intended.
I certainly wish both of you the best!
