I may have missed something, I don't have the time to do some rewatches, so I hope you can help me:
Jolinar died inside of Sam after healing her, because she was fatally hurt and to weak to heal herself, too.
But isn't that the same situation Jacob and Selmak found themselves in in S8? (except for Jake not being hurt that much) So if Jolinar was too weak to leave Sam, why didn't Sam die of symbiote-poison which is set free when a symbiote dies.
If I recall correctly, Jacob said Selmak would have had to leave him, so he could survive.
Or is it possible for a symbiote to willingly hold back the poison and I simply can't remember?