Problem
Background
Problem



P ROBLEM
My parents have been extremely rude lately to my boyfriend/fiance and myself. Take tonight for instance. I offered Andrew [the boyfriend/fiance] a ride home because it was dark out, rather late, and he was tired. So I go ask John if he can ride in the passanger seat for me -I only have my permit still- and John goes off at me about how he thinks Andrew shouldn't be asking me for rides, and how "an 18 year old Adult should be able to take care of themself" and yadda yadda yadda. I told him straight out I'd offered, but John just blew it off.
My mother has told me straight out that she doesn't believe Andrew will or has proposed to me. And neither of them seem to think that we can make it passed just "a few more months."

I'm still young enough to not have experience with talking calmly to my parents, so I'm looking for advice on how to talk to them and make them realize that they are being childlishly rude about this.


B ACKGROUND
Andrew and I have been dating since August 25th, of 2009; so just about six or seven months now. A few months after we started dating, my mother recieved a phone call from the parent of a friend of mine, telling her that Andrew and I have been sexually active. For your knowledge, almost all claims made by this certain adult were false, at the time we had not been active, nor would I have told anyone if we were. This led to a huge fight, and a few more phone calls. In the end I was grounded for five months -until his 18th birthday.

I've had small discussions with each of them indiviually a few times about why they were so upset with me. My mothers' words were something along the lines of "We're not upset that you blatantly disobeyed our rules yet again, it's the fact that you think you can just get away with it. The way you act, it's as if you think you are above us and above the rules." She carried on and on with that. In the end she called me a "b***h," and I'm not lying one bit on that. In fact, I can clearly remember her saying "You are a lying, ******** b***h."

Since that day, they have slowly been starting to tolerate him in the house again, letting him come over often, etc. etc. My mother lets him hang around the house when she's there, and John -my step dad- is trying "his best" to be nice to him while he's around.


P ROBLEM
But recently they have just been flat out rude to the two of us. John will not speak to me while Andrew is in the house, and my mother hardly notices we're there unless we're asking her a direct question. John shuts himself away in the basement all day when he knows I'm with Andrew, and my mother will only willingly speak to Andrew when she's scolding him, or "proving" she's better than he is.

My problem is not the fact that their being rude, but the fact that I want them to see how rude their being, and I don't know how to do that, and not have them think I'm being "childish and thinking I'm better then they are." Does anyone have any advice?