Oh, you're not dumb at all! If anyone was gonna be called dumb, it'd be him, for not sitting next to an amazing and beautiful person like you! But I won't be calling anyone dumb right now, don't worry.
You're smart, don't worry! And there's nothing to be sorry about! I've gotten my hopes up for nothing many times before, and I always feel stupid because of that. But I always know that it's a normal thing to get high hopes and then be crushed (not tryna be negative). Well, yeah, that's all I guess.
~ Your friend, Wraya <3