[Well, he certainly doesn't look mad, just shaken. Though, his expression usually kind of leans toward 'all too serious', so maybe that lends itself to looking angry to some degree. Either way, there's something in his gut practically screaming at him to not to spill the beans on knowing Bruno right away. Like something awful would happen as a result.
Which leads to an awkward lull in the conversation while Yusei tries to figure out where to go from here.]
( ͡° ͜ʖ ͡°) hello
Which leads to an awkward lull in the conversation while Yusei tries to figure out where to go from here.]
. . . You startled me. [That's a good start.]