That isn't a "slight" difference, but a major one, and it's wrong. We are told not to be yoked to unbelievers. There are good reasons for this. What if you married this person, and had kids, and they didn't want the kids taught about your beliefs? So, you risk your kids being unsaved? Not a good plan.
nope, tried it in the past and it ended bad. my ex's who weren't christian were jealous of my joy and cut me down do to my religion. In My Mind Matthew 7:6 says it best.