X-men: first class doesnt add up? (spoiler)?

i don't understand your first question. in the end angel, riptide, azazel, mystique, and magneto go and free emma frost who was locked up. havok, banshee, beast, professor x, and moria were left on the island then went back to professor x's house/ the school. thats it. second question, maybe they had just excepted that they were different and didnt belong together. i dont know. third question, she does age, just not as fast as normal humans, they probably added that because first class was based in the 60's and in the 2000 movies she looked in her 30's. aside from all the continuity issues i think First Class was a good movie.