Any ideas on why am I not romantically attracted to sexual partners or sexually attracted to romantic partners?

I just wanted to begin by saying there's nothing wrong with not being romantically attracted to sexual partners or not being sexually attracted to romantic partners. There aren't specific deciding factors that determine whether or not you love or lust after someone. They're feelings, just like feeling happy, sad, or angry, and they're not your choice. You can't choose how you feel about someone. Feelings about people are developed over time, and over your assumptions, judgments, opinions, and conclusions about them. I understand why it might be difficult for you since a traditionally successful relationship is usually hailed as one that has both romantic and sexual attraction, but just know that there are always people that don't conform to the norm and that's okay.