Because God loves, He also hates. There can be no love unless there is the antithesis of love, which is hate. Those two emotions are inseparable. For example, if you love someone, you hate whatever it is that would harm that person. If you're a parent, you hate anything that would harm your children. If you're married, you hate anything that would defile or injure your spouse. If you love good, then you hate evil. If you love God, you hate Satan. If you love unity, you hate discord.
Proverbs 6:17-19 lists seven things that God hates. In a Hebrew idiom used for emphasis, Solomon said,
"These six things doth the LORD hate; yea, seven are an abomination unto him:"
17 haughty eyes,
a lying tongue,
hands that kill the innocent,
18 a heart that plots evil,
feet that race to do wrong,
19 a false witness who pours out lies,
a person who sows discord in a family.
Proverbs 8:13 "All who fear the LORD will hate evil. That is why I hate pride, arrogance, corruption, and perverted speech."
Revelation 2:4 Jesus is talking here:
"But this is in your favor: You hate the evil deeds of the Nicolaitans, just as I do."
Rev 2:15 "Thus you also have those who hold the doctrine of the Nicolaitans, which thing I hate."
these are the things He hates, i do not take issue with Him over it.