My friend separated my bowls! “Using physics” was his explanation…he put ice cubes into the inside bowl and immersed the entire outside bowl almost up to the rim (had to the past the top of the inside one), after a minute, wedged a butter knife between the too flicking the inside bowl out. Like magic! So happy to have them back!
Hopefully this never happens again – these bowls are staying away from each other from now on.