Original sentence: The latter refers to a person's enduring identity as disposed to romantic and sexual attractions and relationships with those of the same sex, and not narrowly to their sexual behavior
Edited sentence: The American Psychological Association has defined sexual orientation to be "an enduring emotional, romantic, sexual, or affectional attraction toward others," which may or may not be expressed in their sexual behavior, but can also be used to refers to a person's enduring identity as disposed to romantic and sexual attractions and relationships with those of the same sex