Need advice on what her purpose is with this push/pull dynamic?

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First of all, I(male, 28)truly do care about this girl a lot. We had a pretty good relationship for the most part, she(female, 24)did love me a lot, intimacy was good and consistent for the most part, but there were some issues we ran into. First of all she can be controlling. Anytime we went on a trip she would treat me like a child, and she also just has a problem with getting irritated easily. She was also bad for randomly making fun of things about me like that my hair was starting to recede, or other things. I used to play along with it but she would only ever say she’s joking when I would get upset. She also once called me out when she came over for not having my life fully together yet, and that her sister’s fiancé who’s older than me already has a house.

After alot of the things she was saying I kind of snapped at her and things weren’t the same. I spent almost 6 months last year(October-June) barely seeing her(maybe once every week sometimes even two). She worked two jobs and also did school but she became very avoidant due to things, and this pushed me away as she never communicated things after I had to sit down and actually get it out of her months later.

It wasn’t until June when we met up to discuss things, and we decided to break up. As soon as we did this I went home and she already started texting me again. After another two months(which I was away) we still texted and stayed in touch. She then moved to a new province, in which I spent some time with her before she left.

Fast forward to October, we were still texting but one time on FaceTime she got emotional and mentioned how I don’t show “love” to her, or that we have deep conversations. At this point we never agreed that we were back together and I brought this up, in which she got extremely upset. Eventually we agreed to stop texting each other, but still snapped eachother which was stupid. Fast forward to new years I got really upset about what was going on between us and I definitely called her out on alot of things and was definitely meaner than I should have been. She was really upset and eventually she came to the point where she wanted space. I gave her that, and barely was snap chatting her back. Anytime as of now when I put her on read she will then text me and bring up a random topic almost to stay in touch, I noticed she did this several times. Last week she also called me and told me about her issues with her courses as she was crying. The problem is I love this girl a lot, but anytime I’ve talked about my own problems recently, it seems like she doesn’t care. She’s not enthusiastic or talkative, so when I try and back off she comes for me again. I am emotionally drained from this, but I do love her and need advice on what I should do. I recently opened her last snap almost a day ago and need suggestions on how to go about this. This whole situation is really messing with me. Shes a very simple and sweet girl, doesn’t care about going out or any of that and is much a homebody and loves the simple things of life which is where I am in my life right now. We’ve been basically together for almost 3 years. And her family is the best too. Any meaningful replies would mean the world!