Relations

How do you define the word “Relationship”?  Is it really just a word or is there something more behind this word?
What exactly is relationship? Is it defined by the norms of society, or your expectations define it or your feelings???
A relation where you are attached to the other person, where you have expectations from the other person and vice-versa does that relation feels good or a relation in which you are free in every sense, is that better?
If we are supposed to be detached without expectations then what exactly is left in a relation? Isn’t that what relations are made up of??
Without expectations?? Unconditional?? Really??
Is there anything in this world that is unconditional??
Except God’s love I guess

Waiting eagerly for a answer
Aarushi