I like how it was Garnet who defeated her yet she's all "you!" at Steven. Yeah I know she knows that Steven has Rose Quartz's gem and thinks Steven is her but the last time Jasper saw Steven before the ship crashed was presumably when she locked Steven in his cell. He does nothing to her (to her knowledge) afterwords. Probably because of the Rose Quartz thing though. I do wonder if Jasper will ever know or become aware of the fact that he is the son of Rose Quatz and that she passed her gem down to him. She probably wouldn't care either way though.

Jasper: YOU! YOU! YOU!!!!! Dropped a quarter in our ship, here it is.
Steven: um….thanks?