[jonahx]

> Sure, it's a long-term behavioral trait that typically doesn't change; but I wouldn't call that a part of who somebody is

This seems like an excellent definition of "who somebody is"

> any more than (say) an intense fear of spiders is a part of who somebody is.

That, too, is definitely part of who somebody is. It is, eg, exactly the kind of trait used in novels or movies to convey something about a character. And it's something that others would notice and use to describe you in ordinary life.

How is that not part of who you are?