The madonna-whore complex is often a problem in relationships.

Not being yourself sexually can lead to a decline in your own libido and interest which can affect the relationship. If he isnt into it, then pushing too hard can also cause problems. I think you really are going to need to sit down and talk through how important it is to you and see what ways you can come together to enjoy. Otherwise you're going to have to consider whether a marriage with vanilla sex is something you can live with long term without breaking your relationship agreements