This scene is a classic example of a character being a mouthpiece for the writers. Baela’s comments are how the writers want the audience to view Rhaenyra’s actions, both now and in the future. The issue is she is referring to a version of Rhaenyra that she doesn’t know and hasn’t seen yet. With the information Baela has and what she currently knows of Rhaenyra, she wouldn’t/shouldn’t be saying this. 

Where has Baela seen Rhaenyra abandon anyone when their usefulness stops? I don’t even need to explain Rhaena, that’s just a wildly incorrect accusation from Baela and Baela should know it. Regarding Corlys, all Baela knows is that Rhaenyra refused to legitimize Alyn and Addam until a later date (even though I’m of the opinion Rhaenyra should have done it immediately) and then Corlys left of his own volition, and you have Rhaenyra literally saying she will have Daemon look for him to rescue him. Corlys is in Tumbleton. Daemon and the Blacks are marching on Tumbleton. It’s not like finding Corlys is going to be delayed because the two will be done at the same time. 

She and Addam haven’t been abandoned, even when Rhaenyra had reason to bench Baela after the Gullet. Baela herself is the one who has been pushing them so hard to keep patrolling without rest, not Rhaenyra. Baela also should not expect Rhaenyra to be warm with her, probably not for a long time.

TL;DR - this is bad writing and a good example of the people behind the show saying a character is correct when the character is not based upon what they currently know.

Why People Are Conflicted About This Scene