Ok so there's this girl that always contacts me to go to parties with her on the weekends and even when there aren't any she still wants to drink and "hang out." She'll often ask if I want to come back to her place after a party (sometimes to drink more). Im often with my roommate and since we take one car he tags along. Where I'm confused is after we're done drinking she'll say "I'm going to bed, you can use the couch if you want." In my head i'm thinking "WTF no I don't wanna sleep on your couch, I thought we came here to fuck?!" What I usually say is "I'm actually going home I don't feel well and I'd rather have my bed." It feels sooo fucking stupid though! This has happened twice but she keeps wanting to meet up and get together. She socializes with others and I go off and do my own thing too but at the end of the night she always finds me and we leave together. I really think she's into me but idk because she doesnt text me besides weekends to go to parties. Should I just use her as one of my girl_friends to go out with to keep social proof and what should I do next time I'm at her place and she suggests the couch??