Female friend got very touchy while drunk
this week i (21m) went on a boat party for a friend's birthday. one of my closest friends (21f) also went and we spent a lot of time together. for context, we're very close and in the past have said things like 'i love you' while drunk, but never been too touchy together. This day was different because she was basically with me the whole time on the boat, despite having a few other friends on the boat as well. and at one point we were just sitting together and she kissed me on the cheek, and then again but more on the front side of my cheek a few minutes later. i didn't think much of it, but on the way back she laid on my shoulder and then held onto my arm and started scratching it, and i laid my head on hers too.
when we got back we went to a hot tub with everyone and i went and laid on a pool bench and she came and sat next to me for a few minutes, and then went back to the tub.
idk if she did this because she was drunk or because she has feelings or if we're just very close, but we were very flirty that day and sometimes we'll flirt a little sober, but never this touchy or to this extent.
edit: she also broke up with her bf 8 or so months ago but i think she's been on and off with him hooking up recently. also i haven't ever seen her kiss or do anything like this with anyone else while drunk before
what should i do in this situation?