I wouldn't say it's crazy thinking, but overprotectiveness can drive another person away. It is very sweet that you care about her so much, but be careful about it becoming an obsession, if it isn't already. We all have to take risks in life otherwise we'd never make any progress. For example, I traveled alone in South America for several months a few years ago. Was it a risk? Absolutely - what a great way to get attacked or kidnapped or raped. Was it worth the risk? Absolutely. Nothing bad happened to me (knock on wood) and I'm so glad that I risked it.

About god keeping you alive for it... I can't say. But it doesn't seem to be a very balanced point of view in a relationship. I wouldn't want my husband to be convinced of something similar.