I encouraged that type titillation from former girlfriends. Its enhanced sex later for me. I really enjoyed hearing stories of her encounters especially during a hjIf it was a girl who was reputed to be promiscuous or who was openly dating other guys while dating me, I wouldn't talk to them about it. My view was that it was none of my business and I didn't want to insult them or drive them away. The whole premise that a woman's sexual history or activity somehow made her undateable never really resonated with me.
Of the ones that cheated on me, yes we usually talked about it. Regardless of how I found out if they expressed some desire to keep dating I would do that. A few dumped me for the other guy. But more often they apologized and wanted to keep dating. A few wanted to keep dating but no longer exclusively. Like I said I usually agreed even if I thought it would happen again. To some degree I was thinking with my dick, but I also generally didn't have the same sensitivity to the topic as other guys.
To be sure the first time a girlfriend cuckolded me I was hurt and humiliated. I think that the fact that other people knew about it was the toughest to deal with. But I was infatuated with her and she was arguably out of my league. Even after she dumped me some time later she would come back to me periodically. She was unquestionably selfish and self-serving, but also hot as hell. So, to me it became a simple question of do I want a taste of that sweet pussy or not. Sometimes pride tried to get in the way but when faced with her the answer was always yes.
For quite a while I thought that I was "supposed" to turn away such women and I felt weak for not doing so. But the bottomline is that I didn’t want to. Over time that morphed into actively wanting it to happen and wanting to hear about it. A few of the girlfriends that cuckolded me gave me some details but not in a way that I could really explore that titillation. It was more by way of confession after which I would go off on my own and jerk off thinking about it. Only when my wife started cuckolding me did I have a woman who indulged me in telling me about all the sordid details of her fucking other guys.