He wanted her

Love is interesting because a person never knows when they will find their soulmate. The history of Jacob and Rachel was a display of love. He loved Rachel and he will work for her for seven years.
A guy needs lay down his life for his wife. If a man is not willing to do that then he is not ready for marriage. Women need a guy that will sacrifice their lives for them.
See Rachel's humility and industry. Nobody needs to be ashamed of honest, useful labor, nor ought it to hinder any one's preferment. When Jacob understood that this was his kinswoman, he was very ready to serve her. Laban, though not the best humored, bade him welcome, and was satisfied with the account Jacob gave of himself. While we avoid being foolishly ready to believe every thing which is told us, we must take heed of being uncharitably suspicious.

Genesis 29:9-14

 

⁹ While he was still talking with them, Rachel came with her father’s sheep, for she was a shepherd. ¹⁰ When Jacob saw Rachel daughter of his uncle Laban, and Laban’s sheep, he went over and rolled the stone away from the mouth of the well and watered his uncle’s sheep. ¹¹ Then Jacob kissed Rachel and began to weep aloud. ¹² He had told Rachel that he was a relative of her father and a son of Rebekah. So she ran and told her father.
¹³ As soon as Laban heard the news about Jacob, his sister’s son, he hurried to meet him. He embraced him and kissed him and brought him to his home, and there Jacob told him all these things. ¹⁴ Then Laban said to him, “You are my own flesh and blood.”
 After Jacob had stayed with him for a whole month,