Considering the other alternative, Obama, he was the best choice I had. As to being a social liberal, we probably agree on most of those issues, however I place economic and national security ones higher on the list of priorities. I’m pro-life, based on simple logic and science. As to gay rights, what someone does in private is none of my business, but it becomes my business when they demand I alter my own private views. Like I said, we agree more than we disagree, but we have different priorities, not views.
You are somewhat liberal, and naturally, a liberal like Romney is a much better fit for you than for conservatives.