You can protect your personal life without becoming emotionally unavailable.

Reserve and coldness are often confused. You can decline to discuss the details of your marriage or your finances and still be genuinely present, warm, and interested in the people around you. Availability is about attention, not disclosure. Some of the most open people share little and give a great deal.

If you worry that keeping things private makes you distant, put the effort into attention instead. Ask better questions, remember what people tell you, be there when something happens. Closeness is built by presence far more than by confession.