Oh no SAS, I'm so sorry to hear this news.

Just a thought, would it perhaps work if you got a tranquilizer for Ti? It might take the edge of his aggression until he and Miley hopefully could learn to get along. Our vet gave us 5 mg. Diazepam pills, which is similar to Valium/Stesolid for Fister and worked wonders on New Years Eve during the fireworks, and also when we had to get him into his carrier. Perhaps it would cool down Ti enough to not attacking poor Miley.

You do need a break - all of you!

Whatever you decide, good luck!