I knew that this would be the way it went. I said it even before her return was announced and got met with all this 'she needs time' blah blah.
She just doesn't fit in with the current cast at all. The show clearly just dragged her back to keep a connection to the past alive after so many longstanding characters departed, and I think it's just too much weight on the shoulders of one character. Even her day to day stories are boring and lame. She should have not returned at this stage as I don't think the writing is up to scratch. I'm not saying Sharon as a character is redundant, but the way she has been written just makes no sense and is really disjointed and lame.
Her desperation to know her son's every move has not been written well, her 'addiction' issue hasn't worked for me, I just cringed when she said 'I'm Sharon and I'm an addict'. There is no subtlety or depth to the writing of her or any of the characters for that matter. But that is the reason for me why she hasn't worked and won't work.
The writing and the show in general is not in a good state, and to bring back a character who is highly regarded and popular with viewers at this stage only to see her dragged down will not do anything to remedy the situation.