Love has several different meanings in the English language, from something that gives a little pleasure ("I loved that meal") to something one would die for (patriotism, pair-bonding).
It can describe an intense feeling of affection, an emotion or an emotional state.
In ordinary use, it usually refers to interpersonal love.
Probably due to its emotional primacy, love is one of the most common themes in art.
Love is sometimes descibed as an OCD.
See the following related content on ScienceDaily: