An ideologist? [He supplied the word he assumed she was going for.]

It's nothing to get upset about. [He wasn't sure if she raised her voice in response to her inability to find the right word, or in response to him so he thought it was wiser to cover all contingencies] It was a compliment, really. Most people are more inclined to look out for their own well-being, wouldn't you say? To find someone exhibiting the opposite behavior is refreshing.

[He explained, not at all sure if she was going to understand what he was saying]