Why do guys message you and then not reply?

When a guy messages and then stops, check first what his message actually asked of you. A bare "hey" or a generic "how's your week" asks for almost nothing. He may have sent it while waiting for a bus and then got pulled into something else. If his opener was a real question or referenced something from your profile, the silence is more likely a sign he's still deciding how to continue. Look at whether he wrote anything that invited a longer answer. That tells you whether the ball is in his court or whether you need to put something back on the table.

Also look at how fast he replied before the drop. A guy who answered within minutes and then vanished is reacting to something outside the chat, like a busy evening or a conversation that ended. A guy who was slow from the start probably never had much momentum. Both happen. Neither tells you much about you specifically.

The replies that fit this situation come in a few kinds, and each does a different job. A reply that picks up a detail from his last message keeps the thread tied to something real and easy to answer. A reply that asks about something from your own life opens a new thread rather than repeating what's already been said. A reply that lightly closes the loop, acknowledging the gap without apologising for it, takes the pressure off and lets him come back without feeling he owes an explanation.

A draft is in good shape when it has one clear hook and nothing else. If it has two questions, a compliment, and a story, it's trying to do too much, and he'll have to pick which part to answer. Leave out any apology for the silence, any remark about him not replying, and any question that would take him ten minutes to answer.

Send your reply in the part of the day when you'd normally text a friend, not late at night, when it can read as pressure or as a sign you've been waiting. If it's been more than a day since his last message, one reply is reasonable. If you've already sent one and he's still quiet after another day, don't send a second unless you have something new to say, like a plan or a link he'd enjoy. A second follow up with no new content is where it starts to feel like chasing.

If there's still nothing after that, stop. Let the thread sit. If he comes back, pick it up with the same warmth you'd have had if he'd replied right away. If he doesn't, you've lost one conversation, not a chance at finding someone good, and your time is better spent on the next person's messages.