Is it normal i want a relationship, but also don't?

My best friend and I have gone through a lot together. A few days ago we got really drunk and high and made out for a really long time. She confessed she like "my mind" and I said I liked her too. But she told me she's straight? I'm bisexual. She also said stuff like she was jealous when I talked to certain people, that she told our other friend she liked me but I don't know if she really is attracted to me? The next day was a bit awkward. I'm not sure if i really like her enough to date her? Also I don't know how I would ask or approach the topic, I don't want to make it weird and lose her as a friend.