I am really pleased to hear you have re-considered giving Ti back to the original breeder, she just sounds like so bad news.

I can really empathize with your situation, although not in the same, my Ash is a very temperamental cat, he is hard to love sometimes, but I still do, he does not like Lexie, but tolerates her, so I do not have that problem, he will give her a whack now and then to keep her in line and let her know who is boss, but if it ever came to it that he was treating her like Ti did with Miley, I would want to re-home him too, but I often comment no-one else would put up with a cantankerous cat like Ash.

I really hope this all works out, when Ti is re-homed, your household will be much happier, he sounds like a cat who needs to be the ONLY ONE , I must say he is rather beautiful, looks are deceiving eh .

Good luck and I wish you a happy outcome.