AIW for crashing out everytime he acts this way

Before I start feel free to tell me what you think and any advices would help.

I (21F) don’t even know where to start because this story is so long, but I need to get this off my chest. I used to have a huge crush on this guy (20M) for months before we actually started talking. We go to the same university, but we never had classes together. Eventually, we both joined a group chat for people from our shared community and decided to form a club to host events. Out of 80 people, only six of us—including him and me—decided to be the committee. He became the President and I became the Secretary.

​We clicked immediately. Our first conversation was 2 hours straight, and the second time we hung out, we were together from 12 pm to 10 pm. The chemistry was so much that everyone in the club noticed it. But it turned out we only clicked in person. On text, he made zero effort. He wouldn't take me out or even try to see me. I thought he was shy, so I put in some effort. I even confessed I was interested, and he left me hanging for two weeks without an answer while he went on a trip with friends and a bunch of girls. When we finally met, he was 40 minutes late, which made me feel like garbage. Even though he said he was "open to something," he gave me zero effort for another two weeks. When I finally confronted him, he just said he was "busy with exams, eating, sleeping, and playing FIFA." He ended up ghosting my text for 2 months.

​I saw him after those 2 months and completely ignored him. I was over it and accepted he wasn't into me. But since then, he has made the club a living hell. Looking back, he used to "neg" me even when we talked—calling me "useless" and getting mad when I had an "attitude" about it. Now, Every time I make the smallest mistake, he threatens to kick me out of the club, knowing I need the certificate for my CV.

Once we had volunteering and I purposely decided to volunteer in a different time sloto to  not see him. I was talking to a guy and he shows up and cuts our conversation off and constantly starts making fun of me.

​He would purposely scheduled a meeting for 9 pm at uni. I told him to make it 8 pm because I had another meeting at 9 pm and it takes me an hour to go home, but he refused. When I arrived at 9:30 pm, he introduced me to people disrespectfully and said he was going to kick me out. When I said I had to leave at 10 pm to catch the train before it closed, he threatened me again.

I’ll admit, sometimes I do get disrespectful back because I'm frustrated, so I actually went up to him with another girl to apologize for the tension. He literally apologized to the other girl, then looked at me and said, "I have my issues with you, I won't apologize." and he knows he has been constantly disrespectful to me.

​The double standards are actually insane. The Vice President misses meetings and events all the time and he never says a word. I have only ever missed one event and meeting the whole term, and he made it such a huge issue. Recently, I set a meeting two weeks in advance and absolutely no one showed up except for him. It hurt so much because when he sets a meeting only two hours before, everyone shows up.

​He allows others to be disrespectful to me and never stands up for me. But when someone else is rude to another person, he forces them to apologize.  He doesn't mind when others not putting wffort in the club, but the moment I do anything, it’s an issue. Because I’m constantly arguing with him to stop the disrespect, he has made it look like I am the problem to the group. His behavior is so targeted that even a girl in the club asked me, "Why is he only acting like that to you?" Even two of his own guy friends have told him to stop. I’m just tired and annoyed.

I am constantly arguing with him about it and its getting so annoying. He knows exactly what he is doing and refuses to apologize for everything he did. Yet he is still constantly bothering me whenever he gets a chance but in a negative way.

He is clearly holding some type of grudge against me but wont tell me and keeps making it worse for me.

I could go on of the things he did but Im wondering why would he only do this to me?

I’m hurt that he didn't like me back, but I’m even more frustrated that he is doing this only to me.