I don’t get Astarion

Can all the Astarion simps and experts help me/shed some light/info dump about this sparkly vampire? He’s giving me abandonment issues at this point lol

So… in my first save, I helped Yurgir and let him live. I didn’t realize that helping him would screw Astarion over with his deal with Raphael. Astarion got mad, I failed the roll to persuade him to stay and he left my party.

Second save, I make sure to kill yurgir and pay more attention to astarion, but when we went and killled Cazador I told him I wouldn’t help him with the ritual and he again told me he hopes I die (lmao) and left my party.

I’m trying to understand, because in my mind I was doing the right thing by not rolling to persuade him. I like to give companions the choice. So why did he kill Cazador and then leave the party?

With shadowheart, you can remain silent and let her have the choice. I didn’t want to do any rolls to influence his choice and I feel like I got a bad outcome.