What defines a bad guy?

A bad guy is somebody who acts with what 
we define as "bad guy actions". 

In that, how can I beg to differ? I feel
like if my hearth were hardened, unable to
accept anyone, even though I'd feel 
complete with them. 
Now I'm kind of collecting  
wannabe-relationships, in which I'm the 
bad guy saying no.
If only I could feel complete here in 
this country...