Poor
MadBaggins. Where shall I begin? How about the beginning...
It started when my girlfriend got back yesterday. She told me how much she loved me and we embraced. We were ready for our bodies to entwine but I wanted to show her what kind of a man I am by asking her about her feelings and how it had went with her ex. She said it went well. She said they had finally reached a resolution, that their relationship had come "full circle"
Sounds like she slept with her ex as everybody but you seems to have expected.
and she could move on with her life with me, forever and ever and ever and ever and ever and ever and ever.
Is that her or you talking?
Then, while I was getting some orange juice, she casually mentioned that she had slept with him the day before.
Here we go. It's not even funny, it was so predictable.
I spun around. I threw the orange by accident as I did, all over her.
Very true to life. I know you didn't make this up.
She put up her hands like I was going to hit her.
She felt guilty, whatever justifications she gave afterwards.
She was shocked. She yelled and sweared.
Her yelling at you was proportional to the one she knew she deserved.
She asked where the HELL I got off throwing orange over her.
She felt so guilty she genuinely believed it was on purpose.
I said it was an accident then hit back by asking her why she slept with that jerkosaur of an ex.
Between you and me, I don't think she has such high standards.
She just stared at me as if I was stupid, as if I should just naturally understand.
She was the stupid one for telling you the truth.
What is she going to expect you to accept next?
If you want to stoop a little closer to her level (and lose the advantage), you can always hit her back by spilling the beans about your cousin. (Not by sleeping with her, like some suggested.)
She said she'd already told me, it was to provide resolution, to come "full circle". She said it was necessarily for the relationship to end so she could move on.
Translation: she wanted to make sure it wasn't better with her ex. Or maybe it was just a excuse to sleep with another man, for a change.
She gave you a lot of bullshit which I will spare everybody the quote of.
Being common practice does not make something right. Just common. Probably something you can get past. If you're taking the bad with the good and slightly lowering your standards. That is, in great part, what growing up is about: forgetting about absolutes and perfection.
She was so convincing. She had an answer for everything I said.
She IS older, and she IS a woman. I think we're right on topic.
And I still loved her, even in that moment. I cleaned up the orange juice and apologized.
Someone has to have the power in a relationship, and it obviously isn't you.
Was it okay for her to sleep with the bastard?
Not really, although it
is common practice.
Just not yet. Maybe it isn't such a good match after all, eh?
OK,
Lesson number one (general rule): the love you feel is something YOU bring into the relationship. You're on your own. That's life. The thing is to find someone whose fantasies of love are compatible with yours. To love is perhaps more to look in the same direction than to look at each other.
Lesson number two: the crystallization stage ends at some point. You've hit it. Crystallization does not last for ever and ever and ever.
Lesson number three: 20, and the years around it, is the idealistic age. You will grow up and be jaded, like it or not.
Lesson number four: you can't erase from somebody's life someone who was their spouse and the co-parent of their children. The "jerkosaur" had been banging her longer than you. That's what makes their sleeping together again feel natural to them, however wrong when seen from an outside perspective. To her, it didn't feel like cheating.
Lesson number five: Many people have those standards. Romantics like you make up about 1% of the population. (Although I hope I'm not making a too big confusion here between introvert romanticism and committed fidelity. These might be 2 separate things.)
Now I can't wait to see if there's a breakup coming or if the innocent couple will withstand the trial by fire.
We were ready for our bodies to entwine but I wanted to show her what kind of a man I am by asking her about her feelings and how it had went with her ex.
Translation: "We were gonna do it like apes but I wanted to score some points first so I got all emotional and shit."
- - ^ ^

For future reference: No one in the United States calls orange juice "orange". Unless of course you were just getting a glass of oranges, in which I case I'd digress.
Cut him some slack, he's distraught. Besides, we know he's no writer.
You keep using that term. I do not think that means what you think that means. Perhaps you're parrot phrasing or using FRAUDIAN slips.
If you're going to spell Freudian in capital letters, spell it right,
Squiggy!