"Helen" comes downstairs

As the real Helen, and Adam are talking, someone comes walking down the stairs. Someone wearing Helens body.

"Oh hello, Sarah is it?" Helens body says a creepy mimic of the real Helen "Adam why did you let her inside?"

"Who are you and how are in Helens body" Adam says not being deceived by the mimicry

"Oh dang, she told you didn't she, that's no fun" the fake Helen says "You can call me Jean, but it hardly matters this is my body now"

"No it's mine" Helen retorts "and you'll get out of it this instant"

"Cute, but no" Jean says "I'm not gonna abuse this body like you did. Leaving it empty on the floor. Tsk tsk"

Adam and Helen subside their anger for a second, realizing that this won't be solved by asking politely. But what do they do? They can't just let Jean steal Helens life, and Helen needs to find a non-borrowed body.