Paul, in another letter writes that Love is really important, it never fails. If you have Jesus in you, then your heart is His and His heart is yours. The Holy Spirit changes our hearts, maybe not right away but gradually over time as we surrender more and more to Him.
Love is the greatest of all – its attitudes and characteristics are described well here. Which ones do you find come naturally and which do you struggle with? Talk these over with God, giving yourself over to Him to help you work on them.