Because there's a high chance of Xie Shui falling into a deep coma and chances of losing her soul in the midst slowly. If he didn't do what he did now.
The possibility of her recovering naturally is down 0.0000001% and he can't take such chances. So he took a hard decision to save her soul.
Even after using such formation to heal her soul. It will take about twenty years at minimum to wake up. So he sat beside her cultivated while waiting patiently for her to wake up.
Like this more, the ten years passed and the Wang Wei still sitting beside his wife and cultivating patients while waiting for her to up.
Ten years layer.
Exactly after twenty years, Xie Shui woke up with difficulty. Wang Wei who was beside her is delighted that his wife is healed and woke up successfully.
During these twenty years of taking care of her, he become more attached to her. So when she woke up he felt immense happiness.
