What if my roommate's partner stays over?

Their choices aren't your sin

Living in shared student housing means living with people who don't follow Islam. You aren't held responsible for what they do. Allah says:

So you don't need to feel guilty, and you don't need to police your roommate. Disliking a wrong in your heart while staying kind is part of faith (Sahih Muslim 49). See Can I share a dorm room with a non-Muslim?

Your own boundaries

• Being alone with them: avoid ending up alone in the room with your roommate's partner if they're of the opposite gender. The Prophet ﷺ said a man should not be alone with a woman unless a mahram is present (Sahih al-Bukhari 5233).
• Hijab and privacy: sisters who uncover in their room may need to stay covered when a man is staying over. That's a fair thing to raise.
• Sleep and study: a guest every night in a shared bedroom affects your rest, which any housing office takes seriously.
• Intimacy in the room: you shouldn't have to be present for it. Ask for notice and leave, or ask for it not to happen in a shared bedroom at all.

How to bring it up

Choose a calm moment, not right after an awkward night. Keep it about your needs, not their morals: "I need some notice when someone's staying, and I'm not comfortable with overnight guests in our shared room. Can we agree on some rules?" Many universities have a roommate agreement form that covers guests; filling it in together makes it feel neutral. Mentioning your faith is fine, but practical reasons (sleep, privacy, safety) are often easier for others to accept.

If it doesn't get better

Most housing policies limit how often overnight guests can stay. If talking doesn't help, speak to your resident assistant (RA) or accommodation office. You can also ask about a room move, a single room, or a women-only or men-only floor next term. See Can I live in mixed student housing as a Muslim? and, for a similar situation, What if my roommate drinks alcohol?