No, It's hard to have any other life but normal when you're with a woman on an island alone "not unless there is something very wrong with this woman or man", I think you fail to see the point of the plot when it comes to The Witcher games, The Wild Hunt captured her to try to get to Ciri and Geralt so nobly sacrificed his soul to save hers, obviously he did this because of his noble character, not because the Gene's spell, he would do that to anyone that he sees as a friend, he was always a good friend and he defended his friends furiously whenever someone tries to harm them.
I think that his relationship with Yennefer was based on that spell, think about it with me for a second, the way they keep splitting up over and over, on and off all the time, having fights, so much hatred going on between them more than love, it's obvious that the only thing that kept them together was that Gene's spell.
Yennefer lost her memory same as Geralt and no one blames her for getting The Witchers of the School of the Viper into troubles or trying to seduce Aucks, no one is perfect, again, she didn't have her memories, I was a bit upset that she only tried to find Geralt knowing that he was looking for her for 6 months only when she failed to find Ciri on her own, part of me is glad that she didn't, because I think that would have lead to Ciri being captured and delivered into the Emperors hands without Geralt even knowing about it.