Let love be without hypocrisy—detesting what is evil, holding fast to the good.
Romans 12:9 TLV

Genuine love isn’t just love without hypocrisy, as the TLV words it, but love that is in total alignment with God’s commandments. This is why Paul added “Abhor what is evil; hold fast to what is good”.

Is there some activity, attitude, or object that God detests? Then love for God and your neighbor requires you to detest it as well. See Leviticus 11, Leviticus 26, Deuteronomy 7:25-26, and Galatians 5:13-15.