You don't believe science. Science is the process of understanding and learning about the universe. There is nothing to believe. If you agree you agree, if you disagree you prove otherwise. No dogmatism, rituals, beliefs, traditions are present unlike religions. So apples to oranges.
You can also choose to understand science if you invest enough time. You cannot, for example, see a god if you work hard. Again, apples to oranges.
I just found out she converted to islam after her departure. I've been thinking about this.
It is easy to believe a religion is "the good one" when it's under represented because the members of the religion don't really have the power over the society so they don't, or can't, hold other people down with their extremist ideals.
When I first left islam I went through something similar. Here majority is muslim and other religions are scarce. So christians seemed like peaceful modern people minding their own business, respecting women and stuff. Which they were. But as I learned about the church and bible and all that, I understood I failed to analyze the religion as a whole properly. I just looked into a very small window and thought that was the whole thing.
Christianity was the antithesis of islam for me for a while. It's the same with the artists and rich white folks who convert to islam. They get new eccentic sounding names and their melodies change. But they never really live in a real muslim community nor they experience a VERY oppressive muslim culture. They get this image of a religion where you casually cover your head if you want to and nobody cares about anything other than inner peace. Which is cool but far, far from any kind of reality.