Hello One Love, & welcome to the forum.
It is really late/very early in the morning again, but I wanted to welcome you, & answer your post, a little.
For me, it is a question of who Needs To Know. My GP Needs To Know, my Psychiatrist Needs To Know, even though we have spoken very little about it. My choice. My neighbours don't Need To Know. My Dentist doesn't Need To Know.
Very close friends, (none at the moment), although they don't Need To Know, at some point, having established trust & respect, I may choose to tell them
If I am attracted to someone, sooner or later, if it seems like a closer more intimate relationship is possible, they Need To Know, & so would I. When I was young & stupid, whatever happened, ... now I would want to have some sort of conversation before anything became 'serious'.
I hope that is of some help,
& to see you around the forum.