Trust, respect, compromise, understanding.
The ability to be realistic, the ability to laugh at each other and with each other, the ability to be honest, the ability to accept each others quirkiness, the ability to commit to each other and the ability to give each other space when it's needed.
It's worked for me ;o)
Understanding and honesty gives a relationship longevity
been good friends
love and respect
nudes or nods? either way acceptable
Honesty and selflessness
Go and find out for yourself :)
Respect for each other
cozy love ...
N friendly atmosphere .... :-))
friendship, being comfortable with that person in all aspects