Deciding on a POV: Silent observer vs Active conversationalist?

Based on the title question, I feel like I'll get the "active conversationalist" answer, but I'll go ahead and ask for a few second opinions anyways.

Here's the situation. I felt that one of my interpersonal conflicts came out of nowhere, so I decide to go back and add a few scenes to show the growing animosity/disconnect between the protagonist and his party/group/squad.

I have two perspectives that I can write this through. The first being the protagonist, who for the most part does not speak with the others outside of short single word/phrase responses. Almost all conversation occurs between the other characters in his group, and he just listens, while the reader sees his annoyance and general irritation of the group over the course of a week. So it would be something along the lines of Character A gets into a debate/argument with Character B, Protagonist thinks they're annoying twits.

The second option is writing it through the POV of the second main character and "leader" of the group. This POV is more engaged in conversation and develops how the rest of the party feels about the protagonist's dismissive and cold attitude. They express their own grievances and distrust of the protagonist, which eventually boils over into the conflict I mentioned above. In this scenario, Character A tries to get the protagonist involved, but is met with a cold attitude. Character A talks to characters B-E and they express their distrust of the protagonist.

I think both can work, but I'm not sure which would be the better scenario to write to improve the impact of the confrontation that follows it. Chances are I'll probably write them both to see what fits, but again, second opinions can help as well.