Are mothers supposed to love breastfeeding 24 hours a day?

I don't think many mommies will love breastfeeding 24 hours a day. I personally have a love hate relationship when it comes to breastfeeding. There were times when I felt that I wanted to give up breastfeeding when I was extremely tired and when it caused me pains. However, there were also so many times when I love my baby's look while nursing him especially when he looked up to see me with a satisfying smile.