Then why do people say the word friendgirl? What's the purpose of it? It's a confusin word. I don't logically understand how order of a word changes its meaning.
I'm not sure where you've got the term 'friendgirl' from- I'm pretty sure that's not a word! I've never used it or heard anyone else use it in my life.
People don't just reverse words to change meanings, Sam.
Apologies if I'm being a bit condescending here- but it does seem as if you've got a few connotations muddled up (and, yes, with kindness, I do think you may be reading too much into words)
Does this help.....
The word relationship simply describes interaction with others, I have relationships within my family and with friends, with work colleagues, etc. They can be friendly or simply professional.
For example- 'His relationship with his father was a very good one' or 'My relationship with the girl in the office is rather strained'.
I could give a long list of people with whom I have a platonic relationship!
The term 'in a relationship' (as seen very commonly in forums online and places like Facebook, etc as well as day to day life) means that that person is in an exclusively involved in a romantic way with someone else. that's why it appears in the 'marital status' bit, as it indicates where you are on the ladder, so to speak. Goodbook has given it a different meaning in her status, but anyone reading 'in a relationship' would know that it meant that person was 'spoken for'.
The term being 'in a relationship' doesn't have any sexual meaning. It just means that two people are exclusively romantically involved. It COULD be a 'sexual relationship' but just as easily not.
People might assume that a couple in a relationship are sexually active but that would be because society often expects that these days- and NOT because the term means that.
Does that make sense?
For example- I met my husband 3 years before we got married. The moment we started dating, we were in a relationship. we were romantically involved - (ie, the 'in love' aspect)
We were NOT sexually active. We waited until our wedding night. For three years we were 'in a relationship' and I would have been rather offended if someone had said we must have been sexually active because of the term 'in a relationship'.
As far as 'boyfriend' and 'girlfriend' go- generally when you see them written as one word, it's referring to someone 'in a relationship'. The words are never reversed to mean a friend of a specific gender.
'Girlfriend' is a little more tricky than 'boyfriend', I grant you.
'Boyfriend' is 'the guy someone is dating'. Male platonic friends tend to be referred to as simply guy friends or friends who are boys/ men/ guys/ whatever.
'Girlfriend' may need a little context. If a male is using the term 'my girlfriend' - it's the girl he's dating. He wouldn't use 'girlfriends' to mean female platonic friends.
If a woman uses the term 'girlfriend' it sometimes means female platonic friends. We don't tend to use it here in the UK. We'd just say 'my friends'! It seems to be mostly an American thing. Again- context.
What concerns me a little, Sam is when you refer to a male using 'girlfriend' in the 'dirty' way.
What on earth is 'dirty' about 'girlfriend'. I was a girlfriend before I was a fiancee or wife and I'd be very upset to have it implied that there was anything 'dirty' about me being so or that my then boyfriend was being 'dirty' when he referred to me as his girlfriend!
By 'dirty' do you mean 'sexual'?
If so:
firstly-the word 'girlfriend' doesn't mean anything sexual- no more than the term 'in a relationship'.
Secondly, I wonder why you seem to equate 'in a relationship', 'girlfriend', etc with being sexual
and thirdly- sex doesn't equate with 'dirty'.
Sex was God's idea- His gift to us as a pleasurable intimacy designed not just for procreation but as a bonding between husband and wife. Yes, people have misused God's gift (as they have every gift He's given) but it doesn't make sex itself 'dirty'.