So a couple years me and this friend were getting reintroduced to each other but we both got back from the big thing in 2020 and we immediately got close quickly. But this is where the mistake is when we did get close I told her about all my relationship issues and how I can't trust a lot of people as I've been played hundreds of times and if someone genuinely loved me they would have to make it very obvious, so like blantly saying it or even getting more cuddly with me or more handsy. But that's the thing when we got close and after I told her all this she started getting handsy and more cuddly with me even called me a cute nickname at times so this is where I know I think I messed up and I maybe should have asked about what's going on but being stupid I didn't and was really confused for the first 2 weeks of this going on. I then started to get into it and then for 3 months this carried on and I thought we really had something, I was wrong. After the 4 month she drops the bomb and tells me she's had a boyfriend this whole time and they have been having an open relationship for a long ass time. I was distraught she didn't know but i was and I tried my best to get over it and you know continue with it and for a while it worked until we finally decided to stop but that's when all the problems arised or ag least the ones that were already there. She moved for a couple months and for those months I'm pretty sure she was really depressed and sad the whole time but I was there for her he'll she even told me that I was probably one of the only ones talking to her the most through out that and yes we were still flirting and everything. But then when she came back that's when she told her bf about me and how she found someone in there open relationship, I don't know if the bf went around but I doubt that he didn't for a couple reasons, but after she told him he closed their relationship and I'm not mad about that I'm mad at how she stopped being her with me she stopped being caring,talkative, and giving me attention basically and that hurt me a lot because I just felted used like I was a damn toy to her but what's worst is I had feeling for her hard-core feelings and I know that I loved her the most because the bf gives her bare minimum attention but that could just be me talking or whatever. The point is that when all this started and she didn't say anything at all about me and her or even her bf I feel like I should have but she knew everything and exactly how to make it obvious, there is more to the story . When I confronted her about our situation she said she didn't even see me that close or even see me like that,she even said she wasn't lookin for a relationship with me. I was just feeling used and I really don't know what to do from here.