"The luncheon-party she declined;there are limits beyond which repressed emotions becomes dangerous." Which "limits" are referred here?

Dear Student,

Loona Bimberton was jealous of Mrs. Packletide's achievement of killing a tiger and could not control it when she was invited for the luncheon party. She declined it because confrontation with Mrs. Packletide could be dangerous. Thus, 'limits' here refer to the extent of envy between the two of them that might spark into dangerous situations if paid heed to.

Regards