Why did Dev feel suspicious when the Sanyasi returned, and how did the narrative suggest this suspicion was overcome?

According to Chapter 40, Dev's suspicion was rooted in the Sanyasi's unexpectedly quick return. Having told the Sanyasi to come back in two to four months, Dev was doubtful when he reappeared in less than a month, wondering if the Sanyasi had forgotten their conversation. The text suggests this suspicion was overcome by a "veil of Maya" that spread after the Sanyasi's purpose changed. Once the Sanyasi requested a meal instead of money, Dev's mind fixed on the idea that he was simply a guest. This "state of delusion strengthened," causing Dev to set aside his doubts and focus entirely on providing hospitality.