Reference:

Aron, A., Fisher, H., Mashek, D. J., Strong, G., Li, H., & Brown, L. L. (2005). Reward, motivation, and emotion systems associated with early-stage intense romantic love. Journal of neurophysiology, 94(1), 327-337.

Bartels, A., & Zeki, S. (2000). The neural basis of romantic love. Neuroreport, 11(17), 3829-3834.

Ortigue, S., Bianchi-Demicheli, F., Patel, N., Frum, C., & Lewis, J. W. (2010). Neuroimaging of love: fMRI meta-analysis evidence toward new perspectives in sexual medicine. The journal of sexual medicine, 7(11), 3541-3552.

Ortigue, S., Bianchi-Demicheli, F., Hamilton, A. D. C., & Grafton, S. T. (2007). The neural basis of love as a subliminal prime: an event-related functional magnetic resonance imaging study. Journal of cognitive neuroscience, 19(7), 1218-1230.

Fisher, H. E., Brown, L. L., Aron, A., Strong, G., & Mashek, D. (2010). Reward, addiction, and emotion regulation systems associated with rejection in love. Journal of neurophysiology.

https://healthmatters.nyp.org/an-experts-guide-to-your-brain-in-love

Stoessel, C., Stiller, J., Bleich, S., Boensch, D., Doerfler, A., Garcia, M., … & Forster, C. (2011). Differences and similarities on neuronal activities of people being happily and unhappily in love: a functional magnetic resonance imaging study. Neuropsychobiology, 64(1), 52-60.

Using the logic of neuroscience to heal from a breakup: https://bigthink.com/neuropsych/breakup-neuroscience/