Supporting a friend who wants solitude requires respect and care: 1. Respect their desire for space. 2. Let them know you're available when they're ready. 3. Send occasional, non-intrusive messages of support. 4. Offer practical help like running errands. 5. Share resources they might find helpful. 6. Be patient and don't take their need for solitude personally. 7. When they do reach out, listen without judgment. 8. Avoid pressuring them to talk or socialize. 9. Encourage professional help if the situation seems severe. 10. Take care of your own emotional needs as well.