What does "do you need a ride home" mean?

I was at a party a few days ago, and I kinda clicked with this new co-worker of mine. We talked for a long time, and she was giggling and smiling a lot. It is worth saying that we didn't spend the whole party together, I spoke with other people and she did too. She received a LOT of attention at the party, since she is so charismatic and beautiful, so I really did not consider to chase after her, but I still enjoyed talking with her.

At one point in the night, I overheard her talking to another man ( not trying to eavesdrop, but I was standing close to them ) and she casually said "I am really attracted to [insert my race/ethnicity]". She is white, and I am the race/ethnicity she referred to, also, I was one out of 2 people at that party with that race/ethnicity. I don't know if she did it on purpose since she knew I was close to her and we have been hitting it before, or she was just brushing the other dude away for whatever reason(he was white).

Another small detail that happened was that she brought some alcohol I really liked, and I asked if it would be fine if I drank it (we were all bringing different kinds of booze and sharing). She said of course, and gave me her bottle. I pretty much drank all of it (spaced throughout the night, no chugging). When I returned it and thanked her for it, there might have been 1/4 left, and she suggested with a smile that I should finish it "it is not that much, you should finish it".

Lastly, both of us and a few other people stayed until really late. When it was time to leave, she excused herself to the restroom, and literally came back within 30 seconds. She smiled and asked " do you need a ride home?" I knew she was giving 2 other people a ride home, so I politely declined. But the day after I thought "Why in hell would she offer somebody a ride home, when It is almost 4am in the morning, and she has to drop 2 other men??". There are a few more things that happened, but they are probably minor, compared to the things I talked about.

Anyway, what do you, love gurus of Reddit make out of this situation? I am imagining things due to the vast amount of alcohol I consumed, or am I as dense as Osmium? Thank you fro reading!