Info: 11th grade male, heard about mgtow less than a week ago

Background:

So I went to a new high school this year and not even a month after the start of the year a girl in my year sent me a message and we started talking, I didn't really give a fuck about it at the time and so we talked but I felt like she was hitting on me (sending me hearts, talking to me irl, looking a lot at me in classes we had together, etc), probably cause I was new, idk (may be important to mention: I was new but integrated pretty quickly and a friend of my mother, idk who told her that apparently girls "weren't insensitive about my arrival" whatever tf that means). So we got to Christmas break and nothing happened but I didn't really gave a fuck because I wasn't on her at the time. Then the whole thing kinda died off and I stopped talking to her for about half a month but then she started talking to me again, so same thing but this time I kinda was falling for her if you could put it that way and I was like there might be something to get out of this (a relationship).

Week 1:

So I asked her out on a date during the week to go to the movies during the weekend and she agreed, but on the weekend she was hangovered so she said she couldn’t go.

Week 2:

The next Tuesday, she got sick for the entire week (flu epidemic in school) and she told me we weren’t going during the weekend because she does stuff (party and see friends I guess, can't blame her I kinda do the same) so it was postponed to the next Wednesday

Week 3:

Didn't go on the date Wednesday cause she not only went to the movies during the weekend she was sick with a female friend of hers and she saw the movie we were then supposed to see, but she also sent me a message saying the movie was amazing (I think it's a shit test but it's hella weird idk how you're supposed to react to the shit) so I got kinda mad cause I waited 3 weeks for nothing. I thus answered her texts with "lmao" and she was like "lmao why you raging". After the "incident" (wasn't an incident but idk what to call it) the "romance" kinda died and we kinda stopped talking to each other for the rest of the week. She apologized but idk if it was sincere and said that she sent me the message because "I like to annoy you" so I was like tf. I later learned that one of my friend (mutual friend) talked to her after the "incident" and told her to make an effort and stop being "a bitch" (wasn't aware, he did it without telling me, idk why). So a day after apologizing she said yeah when do you wanna go to the movies see another film and I said next week I'll figure out the details don't worry about it, she agreed.

Week 4:

So the romance kinda died and the end of the week was the beginning of vacations. Saturday (so beginning of vacation) I sent her a message saying "still wanna go to the movies ?", I get left on read for a day (I guess it was a shit test or idk but didn't send anything else) and the next day (Saturday) she answers "when ?", I propose the following day (Monday) but she said she was seeing a friend so she couldn’t go, the next day (Monday) she sent me a message without me sending anything beforehand, saying "I'm going to see my grandmother" with the underlying message I guess being: "won't be able to go on the date" to which I answered with "okay". She hasn't sent me anything since and the thing is that apparently she learned that I was on her a bit before (probs a week/ a week and a half before vacation) and I feel like that turned her off.

Problem and advice I guess:

So the thing is when I told I was on her to my friends it meant interested and I feel like everyone took it as "omg he’s in love so he’ll do anything for her and be okay if she treats her like hit cause he’s in love and people in love are desperate" and she sees it that way which might have turned her off because she thinks she can get me at anytime (which passed event kinda suggested I must say I should have walked away after the « incident ») but now I really don't give a fuck and I'm kinda fed up with her and idk what I should do next to grow as a person.

Quick side story I forgot to tell:

I feel like a few girls could be interested in me and I almost made out with one at a party, stared into her eyes while the was a moment of silence, I held her close to me and was like fuck it and I walked away drunk cause I didn't care about her and was thinking about the one I was asking out which is quite dumb cause showing I had options might have made her more interested but at the same time it could have turned her off idk.

Problem and advice I guess 2.0:

I don't really like the curent situation where she thinks she can get me when she wants and I don't like that she thinks it was okay to lead me on for a month.

So yeah, just wanna hear thoughts on the situation and advice on what to do next to grow as a person and get over this and go my own way.