Just looking for opinions (not bashing, please)

Took up flying for fun and it has become a career change for me. I have been with a regional for about 3 years now as an F/O. Pay is a joke, away from home all the time....but I love to fly. Got offered to go back to my old job and pretty much pick up where I left off making close to 3 times what I make now. What would you do?
For the record, I am leaning toward leaving the airline industry but I am wondering if I am going to miss flying jets all that much or not. Wondering if anyone here has stories of friends leaving the airlines and then coming back after a few years. Or vice versa maybe, leaving and never regretting it, and have a much better life now. It would be a waste of my seniority to leave the airlines and find myself trying to make it back later. I am losing too much sleep over this decision!