Yes, it is possible for love to happen a second time. Don't think that just because you may have lost the love of your life that your future is over. Love happens when we least expect it. Keep your head up and your heart open; all things are possible where love is concerned, no matter what age you are!
Don't give up on love either and spend the rest of your life in anger. Stay open, change your attitude and look at people in a different light. We attract what we think - Be it happiness or a lover!