I would suggest for her to talk to a professional about the sudden change in her relationships. It is not uncommon for someone experiencing mania to make drastic changes in their life, disregarding any consequences (such as her losing you). However I wouldn't go ahead and say it is a direct correlation to having bipolar disorder. There may be other deeper issues that lie beneath the surface, that is coming up while she is in a bipolar episode. Again, I suggest this be talked about to a professional, so she can be properly assessed. As far as you waiting for her, that is entirely up to you. You could be waiting for nothing, or could really be there for her if this is beyond her total control. This may also be a time where she isn't equipped to handle a serious relationship, and you may not be able to sustain one until she becomes more stable.