Love will make it worth when you know how to give value to it. Love is a precious thing that we can have in self, and it can also destroy us, once it is used abusively.
We don’t know what our tomorrow may bring forth. But, I’m believing that when you truly love the person you loved, then it is not an issue that he/she will leave you in the end. Not all first love will stay forever. It’s rare that your first love will go further together in a long run. What makes love to worth spending an entire life, is when you have the faith and trust in the person that God is giving for you.