That's right, my friend, you're basically Batman ...
No, wait- this isn't a bad thing! Batman is actually a really, really good friend once he gets over his initial gut reaction to distrust every human he comes into contact with! He's a loyal friend and a genius who uses his intellect to protect the people he cares about.
Sure, Batman can be cranky and morose and deathly silent for large stretches of time- but even all of that is a part of what makes him an awesome superhero of a friend.