Sandy's new sweetheart was threatened by the fact that her work involves relating intimately with her clients - some of which are men. She actually considered eclipsing her practice for this new relationship, despite the financial hardship it would cause her. That kind of control didn't serve her relationships in the past, and wouldn't serve her new one any better. She shifted her consideration when someone observed,
This is an opportunity for your relationship to mature.
Too often we change for someone else, and end up resenting it. Sandy was ready to stop doing that.