Can spellcasters and vampires become werewolves?

She definitely got werebies, although I didn't notice it the first time when she actually turned into a werewolf. For a little context, she was in a romance with Greg and I moved him into her house. She's mean and evil so they ended up arguing a lot once he moved in. She aggravated him so much they ended up hating each other. They got into that fight and I didn't pay much notice of it, I think she went to work. She works nights as a criminal. Then she transformed the next morning after returning from work. I didn't want her to become a werewolf, so I had to try a few times to fully get rid of the lasting effects after she got cured. But they kept on getting into fights and I noticed after that she did get werebies, but I got rid of it immediately before it went any further.