Can lesbian couples weather the storms??

To my knowledge, more than half of the lesbian community claim to be single, I wonder why that is. Do you think lesbian couples are capable of making long-term committments to one another or do you think they suffer from the "Grass is Greener" syndrome?? I dont know not ONE lesbian couple that has been in a committed, long-term relationship, and that makes me think that its impossible to find. I use to think that we werent supposed to be attracted to the same sex, so that's why we cant find that one person for us that we are supposed to be with forever. Like it was a punishment of loneliness. I think females are sneeky, untrustworthy, indecisive and undeserving people who believe that settling down they will miss out on something. I dont think they are capable of being with one person because there are so many to chose from, and they dont have the will to resist temptation. Do you think that as a lesbian, you will find someone that captures your attention and manages to keep it?? && if so, do you think it will result in marraige or just a series of long-term relationships?? I dont have much information of this topic, I dont believe lesbian relationships last. It's a new age, people are less concerned with longevity and more concerned with quantity.