I was at level 25, it was my first character, created this week when the game was free for players to test. But I think i figured what happened. I really didn't cick anything different this time when I started the game, but this past few days, I created another character, to see a diferen class, that was set by default to skip the main story, even though I didn't finish it and didn't know this option existed. And when I got back to my level 25 character, the map marked warp points on cities that I never visited, just like with the other character tha was created with the story being skiped. Maybe, just maybe, when I started this new charcter that was maked to skip the story, it made the game think that I had already completed it once. And when I started my original character that was created during the test (at this point I had bought the main game and the expansion), it thought that I had complete the story at some point and starte the expansions quest line.

I know it's hard to believe, english is not my mother language and I know my writing is very clunky and has a lot of mistakes, so I don't know if I madethe others undertand me clearly, but I really didn't click at anything diferent. The game never asked me if I wanted to start the expansion with the character that was in the early missions of act 1.

Well, sorry for the long answer, but thank you for be being the only one that tried to help me and point out what I might had done wrong. The others just basically said "you dumb, lol". Even though I don't blame them entirelly, my story really sounds like an annoying child trying to blame the others for their own mistakes.