My innermost feeling about fidelity is sort of mixed. First of all, I do believe that people can be faithful to each other and no, men have no excuse just because they might have a slightly different view on sex. But I think that people who manage to stay faithful to each other must make a conscious decision not to get mislead by temptation and that is not always the easiest part. When you are in a relationship and decide to spend years of your life or even your life together so many more things get important apart from sex- far more important. However the feelings still exist and especially if they lay dormant for a while they can be really powerful and almost impossible to fight- for men and women. I believe the difference in men who manage to be faithful and those who sleep around (even if they dearly love their partner) - that is my experience- is that the faithful ones dont seem to put themselves into the situation where things might happen or even consciously avoid potentially "dangerous" situations.