Sounds like you're entertaining the thought of breaking off the relationship. Also sounds like there's already some locked-in character traits and attitudes that are ringing my alarm bells. I can only speak for myself when I say that if I were in the relationship you describe it would last about, oh, maybe 10 minutes?

I'm picturing muself 20 - 30 years into the future, married to an obese, self centered, domineering woman who is hell to deal with because of the hypertension and is unable to even go for a good walk because of her various 'lifestyle' related ailments. The type that drives an SUV everywhere, even 300 yards to the shops to top up her twinkies and cheerios supply. Yessiree, if it were me I'd be out of there faster than you can say "it's a nice day for a bike ride"...... but fortunately it's not me.
When my wife and I were dating and it looked like getting serious, we went on a 3 week unsupported tour, bush camping the whole way. During those 3 weeks I saw the strong, independent, vibrant woman that she is and realised that she is most definitely my equal in all that matters to me, so I proposed. We now have 3 kids and we ride together as a family with the kids in trailers. We are still close friends, not just a married couple (there's a difference). As I found out later she was 'testing' me also on that 3 week trip and I'm very happy that I passed with flying colors.

Bottom line - don't compromise on what matters to you otherwise you're setting yourself up for a long life of misery.