There could be various reasons why the guy disappeared from the chat on the dating app and then reappeared later:
Technical Glitch: It's possible that there was a technical issue with the app that caused the chat to disconnect or disappear temporarily.
Busy Schedule: Sometimes, people get caught up in their daily lives or have other priorities that take precedence over chatting on the app. He might have been busy and unable to continue the conversation at that time.
Second Thoughts: He could have had second thoughts about the conversation or the potential connection and decided to take a break or step back for a while.
Dating Multiple People: In the world of online dating, it's common for people to be chatting with multiple individuals simultaneously. He might have been focusing on other matches during the time he disappeared.
Personal Issues: Something personal could have come up in his life that required his attention and caused him to take a break from the app.
Testing the Waters: Some people use dating apps casually and may not be fully committed to the process. He might have been exploring the app or testing the waters without serious intentions.
It's essential not to jump to conclusions and assume the worst. If you are still interested in continuing the conversation, you can try reaching out to him again. Keep in mind that online dating can be unpredictable, and people's behavior can vary for many reasons. Be patient and open-minded while navigating the world of dating apps.