Why is this happening to me I am loosing myslef?

so this is my first year at college I wanted to be unknown and not have drama with someone so I went and I met this guy who really treated me nice on text and I thought I finally found the one because my love life at high school was trash but we went out. He made out with me and I didn’t know how and he looked like he was disappointed and then after some days we stop texting and never talk again I felt really sad. It goes like how did he feel? Nothing for me when I told him that he was the first guy that I felt comfortable with and that he was my first kiss the first guy that hugged me the first guy that hold my hand after we made out in a view we went down he told me that he has only one neck but 12 make out and hook ups and that he doesn’t really date he just likes hooking up with people I got really sad when he said that and I know that probably we will never go out again together he brought me home and kissed me again, but after that nothing I learned that he made up some rumours about me that I was crazy stalker I confronted him about that, but he said he didn’t do that although he did I was so sad because for real he was the first guy that I gave a chance to because I thought that he was worth it and he turns out to be a player and now this week we just made some eye contact and he’s saw with another guy but he is my friend. But I've seen him flirt w a girl from his class too. what I felt about him was real and yesterday I found out that he blocked me on Instagram since then I’ve been feeling so bad and crying because it feels like he has a problem with me and like I did something wrong I don’t know. I’m just 18 no and I feel like I’m doing something wrong because he removed me after I had an argument with a girl that girl was from his class and he knows about me and him because she was my friend but she was a big liar that’s why we dropped her off the friend group I’m afraid she told him some lies because she’s a big liar. I've been crying bc i still like him

Why is this happening to me I am loosing myslef?
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