Narrator and point of view

The short story “Store Room” by Doug Warshauer is told by a third-person narrator. The story is told entirely from Brian’s perspective, and we get an insight into his thoughts and feelings. For instance:

Samantha answered it on the second ring. Her nose was bigger
than he expected. Send me a picture, he had texted, so I recognize you. Which was obviously unnecessary, because who else would be living in their house, but he didn’t want to be surprised when he saw her. He wanted to feel like he was coming home (ll. 1-4). 

All the events and interactions in the story are seen from Brian’s point of view. This means that we can guess other characters’ thoughts and feelings only by their actions, or Brian’s assumptions about what they are thinking or fee...