God is Love (1 Jn 4:8, 16). He made us in His image, in the image of Love (Gn 1:27). Therefore, we are made for love and are automatically looking for love. So we are happy if we know we are loved, but are brokenhearted and depressed if we think we are not loved.
Because of His love for us, the Lord wants us to abide in Love and in Him (1 Jn 4:16). Therefore, He became a human being, died on the cross for love of us, and rose from the dead for love of us so as to give an intimacy with Him which is beyond human words and ideas. God the Father has even adopted us as His sons and daughters. If we do His will, we become Jesus' mothers, brothers, and sisters (Mk 3:35). Jesus loves us so much that He gives us His body and blood in Holy Communion. He will come back to take us to be with Him in the everlasting love of heaven.
The Lord cannot love us any more than He does. His love for us is infinite, perfect, unconditional, crucified, and eternal. The purpose of our lives is to enter into and live in God's love by having "strength to comprehend with all the holy ones what is the breadth and length and height and depth, and to know the love of Christ" (Eph 3:18-19).
Live in love (Jn 15:9-10). Be yourself. Be happy. Live in God forever.