Successful? Well, I guess that includes a few things for me...happiness and not necessarily happy that I have a loving relationship. Am I happy in how we are dealing with things, whether they be good or bad? Am I growing in the journey I'm traveling with someone?
Now, my goal is longevity, I can not say that it isn't. But did I give the relationship everything I had to offer? If I can say yes to that then I think I was successful whether the relationship makes it or not.