I've already made up my mind and just want address acouple of things.
1. She was the one who suggested it but I was thinking about it long before she said anything, I just thought it would look bad if I said it first, we are VERY VERY similar people in the way we view life(almost identical). Plus Our agreement is only temporearly while we sort our lifes out since we are at very different parts of our lifes right now, but want to be together so badly on that deeper level. Its hard to explain.
My personal opinion is that regaurdless of how unaceptable it may be viewed by society, and although in most case they are bound to end up a distaster there will be times when it can and will work, I truely hope this is one of those times. I'm not the type to get insucure over that crap, but I told myself I will not sleep with anyone else unless she does it first.
The concept of an open relationship just seems to strange to me. I could never do it, but I also don't think it is right to force my beliefs about relationships on anyone else because everyone is different.
In order to maintain a successful open relationship (although could you call it 'successful'?) you need an incredible amount of trust from both parties. That amount of trust isn't easy to find, especially if you haven't known eachother very long, but if you feel like you have that, then by all means give it a go.
To me, the very meaning of a relationship is being faithful and loyal to eachother to the exclusion of all others. Therefore, I don't think an open relationship can really be called a 'relationship'. I know that's quite a strong opinion, but that's how I feel. I guess at heart I'm just an old romantic, and I still believe in all the 'one and only' stuff. I'd never be able to do it, but if you think you're capable of managing it, I wish you all the best of luck.
There's nothing morally wrong with open relationships. It's not cheating if it's honest and the other person is fine with it.
Oh yeah, and I'd like to state for the record: An open relationship doesn't mean you don't love the person you're with. That's complete crap. I know other couples in open relationships who love their spouse/fiance/partner very much. These relationships work because there's trust, some of them even encourage their partner to find someone they like.
Not to mention it's incredibly rude to judge a relationship you're not a part of. It's as bad as saying homosexuals don't really love each other.