It gets even worse when it comes to Ciri. Other than the moment where Geralt brought Ciri back to Kaer Morhen and she hugged Triss. There hasn't been any more interaction between them (Triss and Ciri that is) I could link a few of the conversations that happened between them or some of what Triss did to take care of her. The first time Triss met Ciri something weird, interesting, but weird and it would take pages to explain.
Yeah it gets much worse when it comes to the Ciri/Triss interactions, i don't like it when the characters mention they are doing this for the other, when the game does not even show how important they are to each other!, Triss is meant to be like an older sister to Ciri and this is important because the entire last third revolves around Ciri - in fact as far as i can remember, the only rpg choices you make in the end are about what to do with Ciri. So for the game not to show the interaction between Ciri and Triss, well then it cuts a lot of potential content Triss could of had (and Ciri for that matter).