[Urianger does understand, at one point having been just as unused to hugs himself. He would've even understood if Bruno had turned him away. But now that the embrace has been reciprocated, he gives the other man a gentle squeeze.]

Mine apologies. I wish to comfort thee, and this felt more appropriate than any words I could conjure up.

[Which in itself is saying a lot, considering Urianger's affinity for flowery speech. Sometimes, a simple action speaks far louder than words.]

I am sorry thou hast endured so much. Truly, I am.