Yes, The Prince did do Tia wrong which is why her father is helping her choose a different path. (Become a Knight). He plans to get rid of her fiancé title without any backlash but if rumors spread that she is with another man (Allendis) everything will completely backfire and her fathers house will be shamed as being unloyal and she will be shamed by the country. Her father isn’t planning to marry her if she is unhappy with it. He made that clear. Allendis’ possessiveness is getting way out of hand. Being jealous and all isn’t bad but Allendis is planning to get rid of anything in the way of their ‘love’ even if it means she gets a better life and he may not be in the picture. He’s not thinking about her at this point, he’s thinking about himself and his need to be with Tia. Saying ‘to hell’ to her own father who is supporting her and ensuring a good future for him is ridiculous. Allendis isn’t even the only person who believed her when she talked about her past life and how the prince treated her. Her father comforted her and thought about her as well. I thought their first meeting and their innocent friendship was cute and all (I even wanted Allendis to be by her side at some point) but if he’s gonna act like a clown then no thank you ma’am.
In “past” you mean. I didn’t said that the prince is innocent like he didn’t did any wrong. I didn’t said that the prince isn’t bad.
I comment about the green hair guy. It’s true that he’s too obsessed with tia tho. Aye of course. The green hair guy will surely help tia. But it’s because he wants her. He thinks as if tia was his.

I don’t like the green hair guy. He’s too obsessed with tia. I think it’s creepy. How dare he get mad with tia’s father. Tia’s father is right.
The green guy thinks he own tia. Ugh so creepy and disgusting.