Hi Susan
For what it's worth, my take on this is: We've all made decisions, some bad some not so bad, to get away from a place that we're dissatisfied with. Been there, done that
and we've probably all wished we'd not left a job we'd maybe just grown out of.
However, I think it would be a really bad decision to go back to a company - and especially to the same job - where one had been before. I think that could then put you in a position, if you did go back there, to be very much taken for granted. After all, "she left here once and came back, we don't have to worry too much about her ..."
There's nothing wrong in admitting to potential future employers that you'd made a mistake, that you'd been missold a job, and that you'd decided to cut your losses and find something more suitable. If there's only one such entry on your CV / Resume, that's not going to look as though you're a Job Hopper.
Hope things work out for you!
