I Need Your Help

Somebody needs to email me or hit me on Facebook, cuz I think I might be missing something.

What is the subject of my consternation?

The one-armed hug.

What's up with this? I keep getting these things and, don't get me wrong, I love getting hugs, but I don't understand why people do this.

Reluctance to commit? Body odor?

Or is it "I like you" but not "I love you?"

Seriously, I don't get this.

Am I committing some horrible social faux pas by using both arms?