Demisexual is when people don't, and can't, feel a romantic attraction to someone unless a close bond is formed.

 

Here are some educational sources made by people in the demiromantic community.

https://taimi.com/wiki/demiromantic-what-is-it-what-does-it-mean

https://proudzebra.com/blogs/gender-identities/what-does-it-mean-to-be-demiromantic