That's because you didn't ask me.
As for me, I would not change the conditions of my current relationship at all. Because doing so would end up fucking up everything in my opinion. I look at other people around me with massive drama in their lives caused by causal sex and immaturity. So I've avoided both.
And that has led to me being 2 and a half months from getting married to the most beautiful and fantastic woman I've ever laid eyes on. And we have NO drama in our relationship, we rarely (though sometimes) fight and we love each other desperately.
I'd say it's worked out pretty well.
give it time....you'll both be bickering like all other married couples . Be sure to watch 'til death to see how you will be in 10 years or so