Boris seems to always mess things up, from Mia's perspective. He vomits on the bus on the way to West Virginia, and he has a series of accidents while building the Harmeyers' house. The team tries to give him safer tasks but he still manages to bungle some things. Boris is Lilly's boyfriend. Mia takes comfort in thinking that while she may not be great on the construction site, at least she is better than Boris.