I was brought up in this mono culture as most of us probably were, so I simply thought we were all poly-minded but living with society's stringent rules. I am just now, at the age of 30, realizing that people don't think the way that I think and that there's actually a word for me (polyamourous). So, with that, I realize that my fiance's issues may be more than a masculinity thing.
I also wonder how each man got past their issues, beyond the, "I love her so I learned to [insert life lesson here]." What was the initial disgust about? Where did that feeling come from? Why does the thought of such things hurt? What made it hurt less? What realizations did you have to come to? How did the two of you communicate and work through things? How long did it take (understanding that each person is different)?
Do I hope that one day my man can move past his hang-ups? Of course. Do I expect it to happen in a day, month, year, ever? No, we'll just let things naturally work themselves out. I'm going to love, cherish, and be with him regardless.