If you’re no longer into someone, even casually, you can do one of two things: Stop asking them to do stuff and hope they go away (and they might), or tell them you're just not feeling it anymore when they say they want to hang out. Given that this wasn't a huge thing, you can even respond to an invite with a text that says something along the lines of, “I’ve really enjoyed spending time with you lately, but I think this has run its course.” Anything is better than ghosting someone—that’s just mean.
Really, almost anything goes when it comes to casual dating.
Mature Singles don't necessarily want a full time commitment.
Mature Casual is a dating site in the UK for over 40's looking for casual dating.
It can also be where you've both come to a decision that your relationship is going nowhere, but you enjoy one another's company anyway.