Plumbing leaks are not always the end of the world
A leak on the second floor will damage the ceiling on the first floor. You can’t pretend it isn’t there and hope it will go away. If the leak is allowed to fester, you will have to replace the ceiling in whatever room is under the leak, so it is best to get it fixed right away.
Before you automatically think you can’t fix it, google it and see if it is something you can handle. There are several websites that tell you how to fix it in five easy steps, so see if you can find your type of faucet (if that’s what is leaking) online and give it a try. Otherwise, look for the list of plumbers your husband left behind (or go to your hardware store or to your real estate agent for a list of competent plumbers) and get the work done.
Please note: Sometimes the water leak is actually water from the bathtub that the kids have knocked out as they are bathing. The metal ring that seems to serve no purpose that is halfway between the bathtub plug and the faucet can leak and make water go underneath the tub and through your floor, if you splash the water just right. While this should not be your children’s goal, sometimes it does happen.
The good news is that is does not necessarily mean you have a leak somewhere. It means you have rambunctious kids who have gotten somewhat sloppy with their bathwater.