Did he ever even care about me/miss me?

1) My ex and I are teens and we dated for four months (mostly over the summer) and he broke it off about a week before school started.
2) He seemed very into me until only about a week before the breakup, when he still texted me ALL THE TIME (even up to MINUTES before the breakup!) but wasn't as physically affectionate and didn't hang out with me as much, even though I was recovering from major surgery (so maybe he just felt bad for me?).
3) He said he wasn't ready for a relationship. I texted him several times after he did it asking why and he just kept repeating that.
4) He told me we could still be friends, and I said I couldn’t for a while because I didn’t know if I could trust him. He texted the last text, saying he understood and was sorry.
5) I don't know if he broke up with me because he wasn’t ready, or because he lost feelings for me/got bored of me, or because he allows one of his parents to control almost EVERYTHING HE DOES and they acted like they didn't want him dating (also could explain why he didn’t hang out with me as much).
6) We never texted each other again. Maybe he didn’t text because he didn’t miss me, or maybe because he’s VERY passive and assumed I’d get upset if I heard from him?
7) Even though I’m hobbling around on crutches at school, for the first couple months when he sees me, he either avoids me like the plague or politely lets me pass through.
8) About three months ago our mutual friends were planning a group outing and apparently he thought he was coming along until I asked them to make sure he wouldn’t come.
9) About a month ago, we met at an intersection and he let me pass even though he had the right of way (but he might not have known it was me because it was fairly dark?)
10) This past month, when we see each other he doesn’t politely let me pass through like he used to; he just acts like I don’t exist.
11) According to my limited knowledge, he isn’t with anyone else.
Did he ever care about me very much/miss me?

After a breakup, you can go over everything in your head and try to put together all the clues so that it makes sense to you and so you know whether to be angry, sad, or happy, etc. But in reality, it's all complicated and you aren't going be able to boil it down to one reason he ended things, or to one emotion. You're going to have to go through an onslaught of many different emotions, but slowly you'll heal and get over it. Sorry I can't answer your questions, but eventually you won't be concerned so much about how much he cared about you. Good luck:)

I think he broke up with you so he could screw around at school without having to worry about cheating on anyone.

As hard as this will be for you to read it needs to be said and struck home to you: Its over so do the mental work you need to do to get over him. He's moved on and you need to too.