This is a big question that could take 5 hours to answer. In this short Q&A episode, Tucker Max, Nils Parker, and Dr. Geoffrey Miller broadly explain love, why we evolved to feel love, what love is not, and how to think about love and the relationship you are in. Watch out for desire, lust, obsession, and analyzing resume traits, which are all NOT love. Also, love takes time to figure out. Tucker developed slowly and didn't figure it out until he was 34. 
This episode is sponsored by Dude Wipes, the first flushable wipes for men. Check them out on Amazon for free shipping and sales this month.