There are many of us who see relationships or marriage to be something we need to survive, making us get attached to people we don't need in our lives. In case you don't know, no person is oxygen, around whom your life revolves. A relationship adds to your life, it's not what makes your life. God is the one who makes life and you need Him first before any other thing.
When you depend on anyone for everything, you are not in a relationship but on an attachment and as far as life is concerned, you don't need that. The only thing an attachment is good for is Emails.