That's life biggest surprise, because sometimes the strange or unexpected happens. Those old loves,ex boyfriends, girlfriends, people who you wanted a chance with but never gave you a chance, broken relationships, failed marriages come back in our lives and then try to light that old flame all over again. The mind is a wonderful thing because it protects us even from ourselves, but the heart doesn't care it only wants to be loved and our bodies well it just loves that feeling. When that special person you thought was lost to you or moved on and comes back into your life. Those old feelings start rushing back into your heart all over again. Word of advice, don't just make sure the other person is ready for a second chance, make sure that you are able, willing or ready also. Its never about one person doing what's right or waiting for them to love you. Its about the both of you loving each other and taking advantage of your second chance." If you love them let them go and if the come back to you then its meant to be". Nostalgia is when your heart begins to ache,true love starts to flow and those old feeling come roaring back all over again. Write in then express your thoughts or views on the subject.