Are texts between two parties considered a contract?

I asked a dog breeder via a text: "If I pay the deposit, will we be 1st choice?" She said, "Yes hon." First choice means that we get to have the first pick of the puppies we're interested in, which were the blue cane corso males. She sent the contract, and I signed it. However no where in the contract does it say of course that we have 1st choice, however in the breeder/buyer world, everyone knows what that means. She never showed us all the puppies that we were to choose from, others picked their puppies BEFORE us, and she picked our puppy for us which she claims is "the biggest one." When it came down to make the final payment, I told her that we never saw all the pups, and we never chose. She said, "Now that it's time to make payment, you have a ton of issues." What? I told her she didn't live up to her part of the deal. I told her that I want my deposit back, and that she can't scam people like that. Now, her contract that I signed says the deposit is non-refundable.