Anyone else's Sims hug each other too much?

Just out of curiosity how often do your Sims hug each other? My Sims hug each other so much it's almost irritating. Out of all the interactions they autonomously do, the always choose that one over and over. One Sim will walk away after a hug, then walk back for another hug. No matter the personality, or traits, it almost seems like a type of glitch IMO because it constantly happens.

I have plenty of stuff for them to do, computers, chess tables, stereo's, TV's, etc, but whenever they go to interact, it's always the hug interaction and never anything else. So is it just me or is it something others notice as well?