What’s with attachment?

I thought attachment went only one way
Me attached to you.
I need you (for whatever reasons), so I attach myself to you;
I love you and in return you love me. Clean cut.
Actually, there is a cleaver way of attachment –
Making sure that something or somebody is attached to me,
In need of me.
It seems I am detached and free but this is not the case:
In reality, it encapsulates two needs in one
The need to be needed –
being loved as a result of being needed.

And the trick is that my need to be needed is fulfilled,
Cleverly hidden behind the others’ attachment to me.