How do you personally define the word "love"? where do you feel this definition developed from?

I would personally define love as an unconditional sense of caring for someone else, even when things are tough and supporting them in whatever they want to do in their life. I think love is that sense of knowing that someone has your back even when you feel alone and you are in your dark places. I think this definition developed from my past experiences because at times when i felt i had no one there was always that one person who helped me through whatever i was going through 

C) all of the above hope this