[Ask Gay] Being demisexual in an open relationship.

My partner and I of 2 years are in a newly opened relationship. We set ground rules which I am comfortable with, but the problem is that I am demisexual. Meaning that I require a bond before I can even consider sex. I feel like my best option is to make a new friend, with the intent that we will be friends with benefits. My partner satisfies all my sexual needs, and wants, so I am unsure why I should even try except it will make the relationship fair and balanced. Any incite would be appreciated