Argue? Absolutely not. We do disagree and talk about and through those issues civilly. I honestly suspect if I was using argument as a way to feel cared about or safe, my T would catch on to that very quickly and confront me about that as that is a communication style that would probably indicates something about my upbringing/past, etc.

Have you considered actually telling your T about how you used argument in order to feel safe with him? It might be an interesting and important conversation.