Can Men and Women be Friends?

Can a man and woman be platonic friends?
The answer is yes, if there is no attraction.
The answer is no, if one or both of them are beautiful.
Age is also a huge factor. If the two are separated by a generation.
But generally, if one of the two are beautiful,
It is reason to be distrustful, should your lover have the beautiful one as a friend.
If both friends are beautiful, just assume the adultery.

However, for the one who truly loves, 
They can be among the Naiads
And Heroes, and still retain their fidelity.
This one is usually obvious;
You have no feeling of distrust;
For in their every deed, they say "I love."