How to save the friendship?(Caution: Long thread ahead!)

[bubba4289]

[FONT='Verdana','sans-serif']I recently was faced with a dilemma. I had been dating Mandi, who was my best friend before, for about 2 months. I asked her about us getting serious and she told me she was happy dating, and wasn’t interested in anything more. She said we were both free to date who ever we want. [/font]
[FONT='Verdana','sans-serif']So I was randomly searching through pro’s on MySpace and met Sara. We talked for a week or two and decided to meet. We went to the mall, and then to a movie. We both had a pretty good time.[/font]
[FONT='Verdana','sans-serif']The day after Sara and I met at the mall Mandi had our mutual friend Jason, who I usually won’t talk to unless he is around the two of us, call me up and ask me about our “date”(she assumed it was a date, when in fact we were just meeting each other and such). I could hear her telling him the questions to ask. So I had him give the phone to her so she could ask herself. [/font]
[FONT='Verdana','sans-serif']She basically told me that she was wrong. That she was very jealous of Sara, and that she did want a relationship. (Who am I to correct her? She was telling me what I had wanted to hear for a while). Although I felt an attraction for Sara, and I know she felt one to because she told me, I choose to hook up with Mandi. [/font]
[FONT='Verdana','sans-serif']Now as I said before Mandi was very jealous. She got onto my MySpace and removed Sara’s pro. She also got onto my messengers and deleted her from them also, along with her number from my phone. (I still have her number though and talk to her about every other week or so, just as friends.) I was fine with this, because I tend to be a very jealous person myself. [/font]
[FONT='Verdana','sans-serif']Now here’s the problem. When Mandi and I were just friends we never argued, and if we did it was over stupid stuff. After about 2 minutes we would usually be laughing about what we were arguing about. Now we seem to argue about everything. And instead of there being 2 minutes until were over it, it’s becoming longer and longer. (Max is only 2 days but still we have not been together for two months)[/font]
[FONT='Verdana','sans-serif']I am so tired of it all. I am at my wits end trying to make this work. I’m to the point that I wish we would have never got together. Each day seems to be worse than the previous one. I would I want to end the relationship, but I see no way of doing it without losing the friendship. This is something that I want to avoid. So I am here asking, not what to do, but how to do so without losing the friendship. [/font]