Is there a connection?

yeah,I think there is a connection to your mention.first love is your first time to love someone,it is always unforgetful and rememberable.maybe it is serendipity or become your true love,it is possible. I feel a bit puzzled by these words,and can not tell the different among them in details. I think different people have the different understanding about them,maybe you should think them over carefully by yourself,then you will get something. Good luck.hehe,maybe you do not know what I have said,my English is poor,I can not express myself exactly.