I've got another cat to keep Angel company, because I am only at home about two hours each morning and evening.
She is only about 12 weeks old and I've called her Lizzie. (after Rosemary's second name) she had been named Isabel, but as my Granddaughter is called Isabella so I thought I'd best change it.
Angel is growling and hissing a bit but there hasn't been the totally hostile reaction I thought might happen.
For the time being, until Angel fully accepts her, she is in my spare bedroom with all the things she needs. I'll only let them see each other when I can supervise things very closely.