From a Males Cabin Crew Point,
I am married and have a perfect relationship with the wife. Yes there is flirty fun onboard, but i think thats any where you work. We may have a flirty laugh and fun but no actual 'you know what'
Well not now I am married.
Before I was married and not with my wife things were different. Alot went on.................. At the end of the day what those adults want to get up to as at there own risk if they are already attached.
Not saying that all crew are like that.
But yes I do belive crew can have a perfectly normal relationship and alot do.