Them and Astarion were close, they are dating in fact. The two of them were a good couple and a healthy relationship. Though, just as the two of them got together, Halsin joined the party.

Which wasn't a problem but they began to hang out with Halsin more. Causing Astarion to get jealous but he didn't want to say anything. Though, they could tell.

Astarion stood at his tent, his arms crossed as he watched them and Halsin. Halsin noticed Astarion staring, he then smiled and waved at him.