Textbook hiatus anxiety .. seen this happen more times than I can count ^^.
You have to remember : You owe us nothing, really, given the game was provided for FREE
The best thing to do is what you want to do. These things are passion projects. if you have lost the passion, the drive for it, do not force yourself. .
You want to drop this game and try another thing ? Thats your prerogative.
The only thing I'd ask is transparency, be clear about what you chose to do : way to many games like this, fetish-related or not, have thier creator drop off the internet one day, leaving a community, no matter how small, to speculate.
Should you want to move on, better say it outright so people can move on too (and/or follow future endeavours without a "when you update this one thing ?" following you like a ghost).