JF, being offensive (calling nurses "bitter old women") to the very people you asked the question to is probably not the best approach, dude.
You seem surprised at the tone of everyone's replies, but what exactly do you expect if you say things like "so i thought they had carers or people with no degrees to do this not the nurses" (to quote you directly).
Along with several other posters, I really don't think you have an accurate perception of what being in a hospital is like.
You say "my main issue is how the patient sees it and being on the gold coast i know there are a lot of disrespectful guys." You have already had several honest replies: it happens that patients can behave inappropriately sometimes but not nearly as often as you seem to think, and as another poster has said, it's not usually your younger male patients anyway.
You say "but the other thing that bothers me is that seeing so many naked males may make her then look at myself and just see just another penis or just another naked guy", and again several posters have addressed what they think of that remark, yet you seem to refuse to accept that for the vast majority of nurses, attending to the needs of ill people, naked or not, has nothing to do with how they see their partner in an intimate way.
In your last post, you said "i was asking for information not your judgment or opinions on how i should run my life or relationship. " But you did ask how showering patients affects relationships, so really if you did not want opinions, why post something asking for opinions?
I'm not wanting to be disrespectful in the slightest, but you most certainly have been rather disrespectful.
From an outsider's perspective, your remarks can come across as insecure, so don't blame others for the very questions you decided to post here.
Perhaps you should be more careful of how you express yourself.
Best of luck to your GF, whatever career she pursues, and I hope you've at least learned a bit about how nurses work - as professionals.