Love is not just emotional. Biblical love starts and continually involves the mind. The affections are merely the expression of the love. Jeremiah tells us the heart is desperately sick. If we let our affections direct our love, we’ll be no different than the world – falling in and out of love. Biblical love is also a self-sacrificial action that puts the needs of others above ourselves. Affections will never get you to that level. Additionally, biblical love only loves what God loves. Again, mere affections will never rise to that level.