For those who have loved more than once, how was is different the second time?

I am just curious about this one. If you have loved someone who you considered “the love of your life”, and it didn’t work, how was it different when you loved someone else? Were you able to love as deeply and as passionately, or did your experiences “mature” the way you love someone? Did the way you loved one particular person change the way you were able to love other people? Thoughts?