Falise sounds a lot like Gonzo. He does not tolerate dogs jumping all over him, and he will let them know! He has never hurt another dog, he just turns into a growly, snarky, brat.

When I first got Fozzie... Gonzo growled at him all the time. If he walked by, Gonzo would growl. At first, I interfered all the time. But that didn't work at all. So I allowed them to work it out themselves, and they are best buddies now!

My advice is to let Falise teach Celeste what she expects of her. Of course, interfere if it's escalating, but it probably won't. Falise is just trying to teach the pup some manners, it sounds like... which is NOT a bad thing! =) It could take a few weeks, or longer, but they will adjust to each other.