Tina... we'd certainly hate to see you cancel. We're very much looking forward to meeting you all the cruisemates community members we haven't met yet.
No doubt you and the kids would have a great time on the cruise, and enjoy your time together as well as the new friends you'll all make.
I do understand your dilema though. It won't feel like a "family outing" without your husband. It sounds as though he'd like for you to go, and with the kids growing up and getting busy it may indeed be one of those last opportunities to be with them.
Good luck with you decision. Not an easy one. Maybe made easier if you find a good friend or close family member to go with you.
If you do decide against it, hopefully another cruise will come up down the road where we'll get to meet.