From what I understand she didn't go into the lab, I thought she said she changed the letter that was sent to Nick. But I could be wrong..
I think Sharon will have a complete and utter breakdown. I think she will hear the wrong thing from Nick and it will be over the cliff for her.
I just want the writers to fix her. I don't care if they have to send her away for a few months. But I am so tired of her being trashed. enough is enough!