Communication is key. They need to openly talk about their expectations regarding cleanliness, noise levels, and sharing of common areas. For example, setting up a cleaning schedule so that neither feels overburdened. Respect for each other's personal space is also crucial. If one roommate likes to have alone time, the other should respect that. And they should also be inclusive when it comes to having friends over, making sure both feel comfortable with the guests.
Communication is key. Roommates should openly talk about boundaries, respect each other's personal space, and make clear what is acceptable and unacceptable behavior in the living area.
Rather than inappropriate topics, we should encourage cousins to have healthy interactions. They can exchange books, movies, or music they like, which helps to strengthen their kinship in a positive way.