I don't really mind it turning into mua2 skin (because I don't use that boost often), but if you wanted to get rid of it, then maybe(this is just a suggestion, I don't know if this will work , so do it at your own risk) maybe you can just delete all of the mua2 jean's files in your mua game. Now for me I put all my downloaded mods in a folder on my desktop that way I know who I downloaded and if I want to get rid of them I can just search for their files on my game and delete them(jean and other npcs turned playable through mods may be a different story because they are part of the original story of mua and are required for the game so that's why you would have to be careful with jean and other npcs that were made into mods). I don't know if you do that because I think a lot of people just put it in their game, and if you do that then just download the mod again but place in on you desktop or my documents folder or some other place that's not in the game. Then look at which files mua 2 jean uses and go to your games folders and delete those files. Like I said, I have absolutly no idea whether this will work or not. If you do this then BACKUP YOUR FILES. Like I also said, do this at your own risk.