True love?

What is love? What is true love? What are these feelings I really feel?
I took a few online quizzes from random sites, don’t know if they mean anything or not. One told me I am 80% (4 of 5 questions right) in true love. The other said I’m basically 60% in love, 40% infatuated.

So what is true love really?

When you just want to be with the other person?
When you would do anything for them, just to see them smile?
When you would gladly give up anything for them?
When you know the person has flaws but you love them regardless?
When you feel their pain?
When you worry at night about them if they are upset and you can’t help them?

These are just some of the feelings I have, but there are many more…