We all love many different things. When we first become Christians, Christ becomes one of the things we love:

Over time, if we persist in following Christ, our relationship with the things we love begins to change. In particular, we begin to love Christ more than the other things, and to love them for his sake:

And in time (and by God’s grace) we begin to love all things in due proportion to their worth, and all for Christ’s sake; and some things we used to love we abandon altogether:*

But the things that we cease to love, we cease to love because we now see that they don’t deserve our love. All that is good, we will love as it deserves; and thus it is said that if we seek first the kingdom of God, all these things will be added unto us. Woohoo!
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* This is an advanced move, but one to which we should all aspire. Kids, do try this at home!