Sorry it took me a while to respond, I haven't played the game in a while due to frustrations with these issues.
I don't have a single ace/aro sim, as the 'default' settings do not work as stated, so they were all manually set to be bi/pan (attracted to both genders, open to exploration, woohoo with both genders) as they were supposed to be. However, it makes no difference as they continue to reject romantic/friendly gestures and embarrass themselves, regardless of gender and relationship levels. None of this happened before the orientation update, and if it's a bug, it's a very annoying one that I hope gets addressed eventually, because it destroys all the fun of playing with relationships.
I also want to elaborate that I haven't updated past version 1.90.375.1020, so I don't have the autonomous insult bug like most people do. This is something that only started happening after the orientation/HSY update.
