The Tales of Geralt of Amnesia.
With the last thing I already breached the Topic of Geralt dating Triss while Yennefer exists, and I know this is a controversial topic. Also Triss losses my sympathy in TW2 (she seemed a lot different in TW3), but more about that when we reach TW2.
#5 Triss hooking up with Geralt isn’t as bad as it may seem first glance.
So, poor Geralt doesn’t know shit. And nobody cares to fill him in on anything - whether fighting nor his dating life.
Why nobody tells him about Yennefer I have theories:
In TW3 Lambert and Eskel make it pretty obvious they don’t like her. So they’re probably kind of happy she’s out of the picture and they have other more urgent matters, like the Salamandra.
Triss… well, she is into Geralt, so she has reason not to tell him.
But then, in a tavern later in the game, an Innkeeper tells Geralt basically a short summary of the books - in a way the most people could have heard about it.
And he tells him that the Sorceress died while trying to resurrect the Witcher.
If that’s the story that spread, and Geralt was assumed dead until he reappeared, it is very likely everyone though Yennefer dead, too.
Of course if Geralt isn’t dead it is very likely she isn’t either, but who knows.
So if we assume it’s „common knowledge“ Geralt and Yennefer died, it is likely Triss thought Yen is dead - and has been for five years. So… not saying it was right of her but…
If she thought Yennefer dead it’s not that bad she went for amnestic Geralt.
Triss did a lot - but I think her relationship with Geralt is one of her minor flaws - especially if we consider Yennefer isn’t exactly a saint either. (I started with the books and already in the short stories she has something with Istredd and Geralt at the same time - doing one of them in the night the other during the day)