But my Geralt doesn't retire to Corvo Bianco, he goes to Kovir with the new found love of his life, Triss Merigold
I don't get why are you even posting this here anyway, this isn't Yen's thread or Yen vs Triss thread.
To be more on topic, another thing I enjoy about Geralt and Triss' relationship are the meaningful looks they share. TW3 probably has the best facial animations I have seen and I feel like they really shine with Triss. The look she gives Geralt after he offers to retrieve the parcel for her, the look she gives him after he teases her about 85 desserts and her 22 inch waist, her face when you threaten those peasants, the way she and Geralt look at each other after the kiss, the whole dock scene and seeing Geralt's face light up when Triss returns, her nervousness when she is telling him about Kovir...the chemistry between Geralt and Triss is enhanced so much by this.
I have never before seen video game characters conveying emotions so well like they do in TW3 and for me it really contributes to immersion, especially when it comes to interpersonal relationships between the main characters.