the storyline but, in real life, it would seem to me the best thing for Will to do is tell Marlena what he saw. If you’re getting psychiatric help (even though it’s his g.ma, he’s still doing so), you’ve got to be honest and forthcoming or you’re not going to accomplish anything.
In fact, I think it would make for a good storyline if he DID tell her, making her promise that she wouldn’t let Sami know. It would sure change the dynamics between Mar and Sami. And, actually, what Sami did was far worse because at least Marlena and John were in love. Sami and EJ hate each other.