You are more than welcome. I am here if you need to talk more about getting the adjustments. One more thought- I use to help with shepherd rescue, and honestly= the dogs that lived in peoples homes just seemed smarter to me. Maybe its the constant interaction etc, but they were obviously smarter.
Just remember the cavalier has to get use to accepting this puppy as a member of the family and not a outsider. And let her tell the puppy to "knock it off".. It sounds worse than it is, but even my two younger ones had to learn not to run at Hottie, who is older.. He tells them to knock it off with a warewolf growl.. lol.. ( soooooooo macho ya know..) .. And always pet the cavalier first, feed first, put the leash on first, give cookies first, and the lap ( yours) first.. She will relax. My mother had cavaliers for about 50 years, now 70 something, and they adapt quickly as long as she feels supported by you..