Sinine only gets to meet the other trolls once everyone enters SBURB. She stayed all her time on Alternia mostly inside the Brooding Caverns and didn't get to go out much.

I'm sure she would've liked a tour through some of the cities, and Urdinn & Xunreh would've loved showing her around! [With a reluctant Vorosk that is dragged along with them... as always]