How long should you wait if you haven't heard from your boyfriend and you're in a long distance relationship?

In a long-distance relationship, it's generally reasonable to wait 24 to 48 hours before reaching out if you haven't heard from your boyfriend. This allows for some grace in case he's busy or dealing with unexpected situations. If the silence continues beyond that, it might be worth checking in to express your concern and ensure everything is okay. Communication is key, so maintaining an open dialogue about expectations can help prevent misunderstandings.