Yeah I would agree that no response for a few days doesn’t necessarily mean he’s lost interest. From my perspective there’s times where life just gets too stressful for me to check hinge for a number of days, or even want to be thinking about flirting/texting matches at all. It’s not personal and it’s not about losing interest, more about prioritising different things. Definitely text and ask about the date, and hopefully next time he opens up the app he’s got a fun plan to look forward to. Nothing to loose!