Yesterday I was in a club to celebrate my graduation with friends. Saw a girl I haven't seen in ~6 months years ago we were dating. We catched up a bit; told her I was celebrating my graduation with my friends blablabla. She bought me drinks, but after talking for a while she said with a smile: "go back to your friends, they're here for you." This felt as a negative ioi so I actually went back to my friends. However she gave me drinks which can be seen as a positive one.

Thoughts?