So, I assumed that the Captain and Officers might have served as role models and so were expected to have 'clean' private lives.
I would like to think so. I'm not sure what they did in-between courting A woman. I came across information of Edwardian times on plessure. ( using a family friendly term ) that between 1890 / 1910 there was an instrument for men to stop them from pleasuring themselves. So anything to do with plessure was frowned upon in Edwardian times, and I really doubt any men used it and just kept their business to themselves. And behind closed doors.
Titanic officers for instance, all of the senior officers were happily married. The junior's officers were writing love letters to certain one woman they were courting at one time etc... Officers seem to get married very late in life compared to lower class men such as my GGF. Many fire men, strokers, trimmers were already married and had children, where as men with better jobs took their time. It seems though majority of men from different backgrounds took one wife at a time, but we also know their were mistreses back then too, but rare.
Marriages and bonding meant something back then, even the most daring people in the edwardian era wouldn't have more than 2 spouses in their life time.
So, how I see it, officers and captain were edwardian gentlemen and I couldn't really see them acting like how men act today- booty calls etc... But with the one woman they love and courted for so many years, when they finally meet her, I reckon they didn't wait for marriage. They were human after all, and wouldn't kiss and tell before marriage