Remus didn't even hear James explaining that two people had found out about his secret. He was too horrified to realise that the big black dog he had been confiding in lately was actually Sirius Black in animagus form!
"That big, black dog is actually that Sirius bloke?" he finally managed to stay, scrambling back against the headboard as if trying to get away from this news. "He tricked me. He bloody tricked me into trusting him and letting him in here. I can't believe it."
He felt betrayed, that the one thing he had trusted in all of this mess had turned out to be a lie. He was sick of this and wanted it to be over now.
"I told him things, James," he admitted, looking rather pained. "I thought I was talking to a dog who wasn't going to understand!"