Scientific literature robustly supports the idea that romantic love and social bonding are driven by specific neurochemical networks and hormones, including oxytocin, dopamine, and serotonin.
The claim states that love is driven by specific biochemical reactions in the brain. The retrieved papers consistently identify neurobiological underpinnings of love, focusing on specific neuromodulators such as oxytocin, dopamine, vasopressin, and serotonin. No papers refute the biological basis of love (paper [4] is about a biosensor technology named after Love-wave physics, and paper [7] is about cardiac myosin, rendering them entirely tangential). The balance of evidence clearly supports the claim.