Ana's friends were supportive of her relationship with Allen, despite him being a peasant. I guess one's social status no longer mattered to them since they knew how coldly the Dumb Prince had treated her before.
Well, as far as I can see it, she did have a crush on Gojou. But yeah now that you mention it. Ig she realized this after felt in love so hard with Gojou.
Anastasia's parents were aware of her feelings towards Allen at some point after the duel incident. I guess that's why her father keeps reminding Allen about supporting her as a friend until now. But on the other hand, her mother was quite supportive of their relationship, she even encouraged...