A few nice relationship images I found:

Not-So-Tight Relationship

Image by Wombatunderground1
Is someone interested in another? The ladder grips perhaps?

Are the bonds of love loosening because of a bad knot?

Universal McCann Different Relationships Different Channels

Image by Gauravonomics

Relationships and children are similar.

Image by bruna camargo
They don’t listen to you and may go wild.