As for trying to smash Zaros and the player, it was shown in her nightmares in Children of Mah that she had feared her own creations. And when we beat her nightmares in the dream, we discovered blue ice-like formations in her core. This suggests that Wen might have corrupted her on Freneskae.
If Mah feared them, why did Zaros say at one point in the past, Mah treated them more like toys (or comfort friends, according to Seren)? Seren also said Mah cried out for Zaros when he left, while doing no harm to Seren.