I think a lot of DC interaction in LDs has to do with your subconscious impression of the person (assuming they're someone IRL).

For example. The first LD I ever remember having was when I was in middle school. There was a girl who had bullied me all year and I woke in the dream, realized it was a dream and I could 'do anything', and grabbed the bully and raped her while her mom stood next to me and yelled at me (sick I know, but making a point here...)

Anyway. Later I've seen that 'DC' (someone from IRL) in other dreams, and they have always been terrified of me (no wonder lol!), and usually run away. Once I dreamt that I bumped into them on the street and felt terribly guilty, started crying in the dream and trying to apologize to them as if the other dream had been real, and the DC drew a pipe and started clobbering me with it.

So long story short: done anything to piss off your friends lately lol?