You have to admit that your use of the app has gone from fulfilling your most hidden fantasies (you hadn't even known that you wanted to be a man!) to creating a series of escalating messes that would be hilarious in a Jim Carrey movie but were a lot less fun to live through. If Tamika knew what she was talking about, and it seemed like she did, this was the normal way of things, and the way to fix it was to start fresh--essentially to reboot with a new user.
And that would mean you would have to trust someone you hadn't treated very well. Granted, your husband, now this attractive woman, had wronged you by cheating, but that didn't give you carte blanche to do whatever you wanted in return. You had no right to turn her into a submissive woman.
But even if you could trust her, maybe the app was inherently corrupting? It would still be a risk. But it would at least fix the dog problem, you hope?
But the dog problem wasn't your problem. Why not just walk away? Sometimes being an asshole was the simplest solution.
You take Tammy's phone and direct her to the app.