I'm thinking about the time that that my adviser said she would help me with the decision process.
That's oddly specific. Why are you thinking that?
Because our team has worked on a lot of projects together and I do not feel like she is backstabbing me.
It's normal to distrust people, specially if you do not know them. But your adviser have helped you multiple times in the past as well as have said that she would help you with your current issue. I think you can trust her and do not think of her as someone who would backstab you.
Yeah when you put it that way she seems like a great person. I don't know what I was thinking.
But I think it's normal to have some doubts sometimes, so you shouldn't worry too bad about what you thought. As long as you are all still on good terms, it's all good! I believe she would love to continue to help you, given you are keeping your great attitude.