Sources:
https://blog.udemy.com/psychological-facts-about-love/
http://list25.com/25-crazy-facts-about-your-eyes/
http://psychologia.co/the-power-of-eye-contact/
https://www.psychologytoday.com/blog/the-mindful-self-express/201311/10-research-based-truths-about-people-in-love
http://www.boredpanda.com/love-facts-list/
http://www.factslides.com/s-Eyes
http://www.kickassfacts.com/30-kickass-interesting-facts-about-eyes/
http://visionsource-eyelovesmiles.com/2015/12/23/did-you-know-these-6-eye-facts/
http://www.buzzfeed.com/regajha/heartwarming-facts-about-love#.fu0jrXBXrq
http://facts.randomhistory.com/2009/08/04_love.html
http://www.lifehack.org/articles/communication/10-crazy-facts-you-probably-dont-know-about-love.html