We don’t taste honey and decide it is sweet. Neither do we touch an iron and decide it is hot. Both “sweet” and “hot” are a reflexes to a reality we experience.
When a person personally experiences the love of God through Jesus’ death on the cross, the natural reflex will be to respond in love to God. A person does not decide to love God… love for God is a reflex to God’s love poured into them by the Holy Spirit (Romans 5:5). It is the result of God giving a person the ability to comprehend the love of God through Jesus.
Deciding to love God is as much something we choose as tasting honey and deciding it is sweet or getting burned by fire and deciding it is hot.