We have a four-inch thick, 6 foot long endgrain countertop that became dry and the pieces began to separate in places. Thinking that adding back moisture would reverse some of the damage before re-oiling it, my husband let wet towels sit on it all night. It's now warped and has pulled away from the wall on the side and the half wall that it's attached to on the bottom. The glue between pieces is now squeezed up a bit onto the surface. Is it possible to add moisture to the underside so it expands the other direction? Will it return to the original shape as it dries? Can we do anything to fix it?