Technically they DID know each other 6 months, or very near it. Assuming the movie follows the historical TIMELINE accurately at least, Charles and Erik meet in April ("I'm more interested in the
Jupiter missiles America is
currently placing in Turkey") and go their separate ways in October, when the ship standoff happened.
I got the impression from their relationship though that it was very deep very fast. The link posted above about their Romantic Tragedy is far-fetched to be sure but I definitely believe that the actors portrayed the bromance ambiguously on purpose. The timeline is short whether you follow history (6 months) or the "feel" of the movie (what, a month, two tops?) so they had to find a way to bump the friendship up to make the ending more tragic. I wasn't sad when Raven left Charles, despite the fact that they had been "siblings" for what, 15-20 years. I was devastated when Erik left Charles because their short friendship was so intense. I felt during the beach that if Charles had said "yes I agree, humans are *****ebags", Erik would have taken Charles and Charles alone. I'm not saying this from an "OMG they're in loooove" standpoint either, but their friendship was intense and gave the impression they were all the other really needed in a person.
I think the poster is referring to Raven, not Erik. I agree X-Maniac, Raven just saying "yeah bye" didn't fit to me. It really bugged me in fact. A friend of mine had an interesting perspective on it: Had Charles not said anything, she would have stayed. She would have stayed, wanting to go with Erik the whole time but refusing to leave her paralyzed brother out of sympathy and guilt (especially because though she is angry at him, she is not angry enough to ditch him under those circumstances). And that desire would have eaten away at him, at both of them, until they grew to resent each other. This is the last thing Charles would want. HE is the one who encourages Raven to go with Erik. And he makes her (and Erik) go without letting either one of them know the depth of his wound. Don't forget, when Erik pulls out the bullet it is BLOOD-FREE and smashed in. The suits were designed to be bulletproof, I'd wager that the bullet never even touched his skin. It just happened to hit at just the right place and right amount of pressure to break his spine. As far as Erik and Raven know, he's just had the wind knocked out of him.
ANYWAY! Film review stuff. This movie gets a 9/10 for me. I loved it! I thought Michael Fassbender stole the show. I loved that there were no heroes in the movie, just complicated characters who think they're in the right. I loved that saintly wise Xavier was a flirtatious spoiled rich kid with a full head of (lovely, lovely) hair. I would LOVE to see him really lose it in the next movie. I would love to see him get angry about the loss of his legs, at Raven, and especially at Erik. I'd love to see him get to a really dark place with his powers as a result and juuuust barely pull out of it in time.
It's easier to list the things I didn't like about the movie:
-Moira. I've heard she has a million deleted scenes but there's a reason for it. She did nothing to push the plot forward. Her deleted romantic scenes with Charles wouldn't push things forward either... his development is entirely thanks to Erik.
-January Jones. I'm sorry, i found NOTHING appealing about this woman. It felt like she was playing the role as a favor to someone. She wasn't even attractive in it.
-Magneto's costume. Ohhh myyyyy godddddddddd. Like people have already mentioned, it was so ugly and didn't make sense at all from a character perspective. Erik in his nicely fitted suit-hat outfits to the bank, his suave turtleneck-leather jacket combo, his slacks and tucked in polos, his baggy shirt with oversized pants tucked into boots and a cape made from a blanket and a red and purple helmet with a bug on the front.... one of these things is not like the other. I really liked the silver and white helmet. I get that they were nodding to the comics but I sincerely hope they ditch this one and go for something classier like SIM had in X-Men.
-Beast in the hangar and his lack of lip sync. So bad, SO bad.
Other than that though, this film was excellent. Way to refresh the series!