The Netorare tag needs to be moved from male to female. In this case it is the male who is making another male jealous by fucking the female not the other way around.
The OPPAI T-shirt text and graphic staying on his chest even after his shirt was off actually made me laugh.
Also, damn, that fat guy managed to build his own log cabin while stranded alone on an island, with a proper door and a covered front porch (with bannister, of course). He probably even managed to pour the concrete slab it's sitting on, too. And then she insults it by calling it a "hut".