Tristan makes a snap judgement. Stay hidden. The knights will take time to reform, and there are other obstacles. But he might not get another chance to observe Pellinore like this, and that information could be more vital. 

And he [i]knows [/i]the Lady Constance. He has always been eager to learn from everyone he can - long ago she gifted him with her time, and he's treasured the lessons and the memories always. Idly, he wonders if [i]she [/i]remembers [i]him[/i]. 

She is an ally, and she is better suited to the task of dissuading the knights. Of resolving it peacefully. 

"[i]Chase two rabbits, catch none.[/i]" Isn't that what he was always taught? He focuses on the task he's better suited for, and delegates the other - though he has no good way to tell who he's volunteered. 

He draws the bowstring, no arrow in hand. [i]Now [/i]he blinds himself to the forest to better see the tree. 

His concentration isn't perfect. The lingering doubt this is the wrong decision stays with him. It's irrelevant. The decision was made. 

Breathe.

He is standing right next to Pellinore. He is close enough to touch. She is all he sees. 

Breathe.

Blind to everything else. Trust the rest is handled. Trust that he's right to trust. 

Breathe.

[Weird: 6, 1 +1 = 8]