Jacob didn't love Leah but instead loved her sister Rachel. This story is usually told according to the perspective of how Jacob and Rachel must have felt at being tricked by her father Laban into marrying Leah. Let's take time to consider how Leah must have felt having to marry a man who was in love with her sister. No matter what Leah did right her husbands heart belonged to Rachel. That takes sibling rivalry to a whole new level.
According to these verses it sounds like she held on to some hope that he would come to love her eventually. She really shows unconditional love to her husband because you don't hear her complaining. God blessed her for her faithfulness to her husband by giving her so many children plus a longer life than her sister Rachel and she was buried with her husband Jacob. He did come to the end of his life treating her with great respect and the honor she deserved.
Leah teaches with her life to trust God no matter the circumstances. To never lose hope and especially to never complain of the situation you find yourself. God allows these trials in our life to refine our faith or the faith of others!