Lets walk through what you are saying

"I don't need a relationship".

"I am entertained enough therefore I don't need a relationship"

"I cant get aroused anymore. I have theories about why. Its humiliating/anxiety inducing. And therefore I don't need a relationship"

Since everything hinges on what you think a relationship is, its crucial you clarify what it means to your first.

This is super important.

If you don't have a good understanding of what something is, how can you want it?