being around drunk people

this revolves around issues of consent and mentions intoxication - - - the other day i went out with my friend who brought his friend and she had taken 8 shots and i was sober except for hitting a thc cart and she was being really affectionate and getting in my neck and at first i thought it wasnt sexual but i think i liked the attention and i was kind of like smiling cause it was amusing/flattering but that was like 5 mins after meeting her probably more but it wasnt really long that i had been talking to her at that point that i was like fuck. and my smile dropped it wasnt funny i wasnt in a good mood and i was thinking about how im taking advantage of this girl. the whole night she kept telling me to let her know if she was making me uncomfortable bc i def wasnt reciprocating at all at least physically but i felt like 1) i didnt want to make her feel rejected 2) maybe something could happen when shes sober (idk if this is had) or if i get drunk 3) i just have a hard time setting boundaries in general and so like she kept doing that to me but i didnt reciprocate but i still feel disgusting i kept telling her to drink water and she is too drunk but i didnt outright say most of the time if i was uncomfortable i just said “maybe not right now” and i didnt tap her twice to let her know. i even asked my mom during it and she was like well she is responsible for herself and i was like hell no. but i went to her house to drink with our friend bc i felt left out but maybe i wanted to get on her level to do things (i wouldnt have. i hope not) i mean i DO hate feeling like the only sober person and drunk people annoy me most of the time so i did kind of want to put myself in their mindset because i wasnt enjoying myself being so in my head but they started throwing up so i got a lyft for me and my friend. i still feel guilty especially bc at first it was kind of funny to me but theres nothing funny abt someone out of control i guess ive just never been in that situation before. especially since im a lesbian. i feel even more predatory bc of that fact. shes also like maybe 7 months younger than me which i feel is a huge age gap. we’re both 19. i dont know if i did the right things. like i would only tell her i was uncomfortable if she asked. it kind of reminded me of when i stayed at my sisters like i used to do a lot and shes an alcoholic and 11 years older than me. and one time i was watching tv on her couch and she came downstairs i think maybe she was with her bf and she started being affectionate and kissing me on the cheek and it made me anxious and uncomfortable cause she kept being like i love you so much and like a bunch of stuff she says when she gets drunk about how i was her gift. it wasnt like in a bad way dw but i do have skin picking disorder and ended up getting my first skin infection as a result of that night. at some point in the night i started thinking about that. but now idk if im the one who takes advantage of others. like my sister was drunk too i could have pushed her away. idk.