Most people, when they think of love, they either think about romantic love or familial love. However, I often also think about one's love of land and country. Most people seem to forget about that or at least do it blindly, not realizing how much that is love as well.
But first let me start by saying that love is neither pure and innocent, nor the source that is all unhappiness in the world. It just is. It can be corrupted and turned into something evil or it could be the one thing that saves us all. People sacrifice themselves in the name of it, running into the line of fire to protect those they love, but people can also be blinded and misled by using it. Love has been condemned and praised in the same breath because to some only certain types of love are tolerated. There's love for God, there's love for yourself, for your family, for your lover (whether it be your wife/husband/partner/mistress), and for your own country. I've seen and experienced all of those in my life, both good and bad.
I love my lover, Marcus (we cannot be more than lovers sadly, though he lives in my house) and I love the people in my family that I can trust despite not seeing them in years. I'm working on loving God again, but it is hard for me. And I used to love my country, but seeing what happened when I did, I don't know what to feel anymore toward it.
All of these can be or have been perverted in the past. When you do love, I think people need to be careful with their love and not let it be led astray. Sometimes you do the wrong things for the people/God/country you love and that's not what was needed. Often a person holds guilt over it.
Love is dangerous, especially when you would kill for it.