The 53-year-old singer - who is currently dating 24-year-old dancer Brahim Zaibat - explained while her children Lourdes, 15, Rocco, 11, David Banda and Mercy James, both 5, fulfill her in many ways, she constantly feels the need to have a boyfriend as she doesn`t want to live alone.
She said: "I don`t want to live my life on my own. I love being a mother. My children fill me up in many ways, and inspire me in many ways, but I need a partner in my life and I think most people feel that way.
"I`ve never really lived a conventional life, so I think it`s quite foolish for me or anyone else to start thinking that I am going to start making conventional choices."
Despite having also dated 24-year-old Brazilian model Jesus Luz following her divorce from director Guy Ritchie three years ago, Madonna maintains she didn`t intend to have relationships with younger men and blames the "romantic" in her for her choice in boyfriends.
She added in an interview on `Nightline`: "I didn`t choose to, you know, I didn`t, like, write down on a piece of paper I`m now going to have a relationship with a younger man.
"That`s just what happened. You see, that`s the romantic in me. I just met someone that I cared for, and this happened to be his age."