I think there is indeed true love, though maybe not how others do. I feel you can indeed be in love with someone and they not be who God has for you. Whoever God has for you I think would be the “true love” as storybooks say, but I think God can have more than one love for you if say someone becomes a widow or a widower.
Unconditional love I think comes more from God, a parent to their children, and maybe pets to people. I know friends, family, and romantic interests love you but it’s impossible to be “in love” or show love always. To have an attitude of love and respect? Yes that can be always.