Oh no, you didn't spoil anything at all, no worry!
Funny thing is, I ran into three different people on the street in the past two weeks wearing SoA t shirts. I struck up a conversation with one of them, and she told me 6x01 had an intense ending. That's basically all I know, but now I'm half way through the episode and I have to say...there have already been two or three moments on the show that made me sick to my stomach already. So...now I'm super terrified about how it'll all cap off at the end.