three is a crowd?

I have an ongoing(it rolls forward each year -almost akin to a bad & doubtful debt ) Enquiry into threesomes- I wonder if three people can really ever become good friends in an equal measure. There is a saying in Russia,"Three people can keep a secret if two of them are dead." Here,a casual after dinner walk with three good friends,turned into an excellent sketch,as one continues to walk ,whilst the other two, curious,paused and looked back.

Stand by Me

If three is a crowd,then is two company?
Here,my eye caught the hexagonal stance in this conversation expressed by the body language between two friends as they talked.
One with head slightly bent,body language turned into the other and standing facing them,saying,"Stand By Me."
Whilst the other facing the road with only the head turned sideways,as if saying,"Walk with me."