Even if you don't love her, if you do see a good
friend in such a state, you don't really feel good.
Don't think about your feelings for her yet. Think about why she
got drunk and why she called you instead of others? Obviously,
there is something within her and she needed that release, by
calling you, is the first automatical thought that came up.
Your break-up isn't clean at all. If you desire, you could update
us here or a new topic.
Cheers