What happened at the end of Wasurenagumo?
The shopkeeper said it was over if he got caught in the web, which happened. You could see the blue glare under the guy's eyes, which means he wasn't himself anymore. He snapped out of it before because the girl got hurt, but after he got caught in the web again he was being controlled(?) again.So maybe the spider-girl is now manipulating Suzuri and he's thinking she is Mizuki