GF (22F) decided to end things with me (25M) because I don't "fight for her"..

I have been dating my gf (ex?) for almost 2 years now. When we first started dating, things were great as I assume all new relationship are. For the first year of our relationship I spent half of it living in another state as I was undergoing an internship. I eventually moved back to my parents house which is no more than a 5 minute drive from her house. We live in the same town and we actually first met in high school, but we never considered dating back then as we were in two different crowds and never really connected. I believe this is one of the reasons our relationship is struggling, the fact that me and her are very different people.

Back in high school, I was never very social, I didn't have too many friends and I liked keeping to myself mostly. It's just how I was. On the other hand, she was part of the "popular" crowd which gave her an ego that I believe she still carries to this day. The town we are from is not the worst but not the best, but I do see the people whom I graduated with are not doing anything with their lives other than party and drink. These are the kids who were in that whole "popular" group. In no way am I judging them as they are free to live their lives as they see fit however I am very much different from this lifestyle as I am currently full time school and work (I have been full time IT for about 3 years now). I don't party much, don't drink often, I just work and study and spend time on my hobbies (cars, racing, computers). Now the reason I mentioned all of this is because it ties back to how different me and her are. She is still friends with people in that crowd and it lead to a few issues with our relationship.

I am a firm believer that you should put yourself around positive people who will influence you to grow. I have very few friends whom I speak to on a regular but I enjoy having them as friends because their mindset is similar to mine. They are looking to achieve which helps motivate me to want to achieve. The friends she hangs out with only look for her when it comes to partying and drinking. Again, I am not telling her who to be friends with or who not to be friends with. That is completely up to her. The problem lies that she has trouble seeing things from my perspective. She gets upset at me when I do not want to hang out with her and her friends at times. I explain to her how I feel uncomfortable sometimes going to clubs because I never really did those things. It's just not my cup of tea. This upsets her and we usually get into arguments because of this. I have put in my part however and eventually gave in to going to clubs and drinking with her and her friends because I wanted her to feel that I am understanding and I am doing it for her. Because I love her. Yes I would feel uncomfortable but I make the best of it and we end up having a good time.

I try to work with her the best I can. I try to change and accommodate her interests. The problem is that I don't see her doing that back... I feel that I can't talk to her about big future things (my next job move, plans for an apartment) because I feel that she either doesn't care or she just simply does not understand. She is far from dumb but it is obvious we are on different levels of intellect and maturity. But I love her regardless. It is starting to bother me though how I feel that I cannot turn to her when I need support. I fear that when it comes time for me to need her to help me through big decisions, she won't be able to help. It just makes me feel like I'm her emotional support but I also have to support myself.

We aren't too many years apart but it is obvious we have different mentalities. Our backgrounds are to blame I guess. Her parents are divorced and her older sister was also part of that "popular" crowd and continues to believe attention is everything. She parties every day and does not have a job. So that leaves her mom as the female role model. On the other hand my parents are together and I have 3 siblings. My older sister has her masters degree, my younger sister (19) is well on her way to her bachelors in biomedical engineering. So you can see the difference and how my background affects my mentality and why I am the way I am.

I can continue on and on (and honestly wish I could because I don't have anyone else to talk to about these things..) but I do not want to bore you guys if I hopefully haven't already. So on to the fall of the relationship. These past months have been a rollercoaster. On and off arguing and making up. Most of the times it was something in significantly small. The reason we end up arguing is because I try to explain myself and my feelings to her and tell her why it bothered me so we can talk things through and get over it. This upsets her alot. The moment I try to explain myself she immediately gets aggravated with me and throws words around like "I'm sorry I'm not your perfect girlfriend!" "I'm sorry I'm not good enough for you!" "I'm tired of you always telling me how I ruin your life!" "you're so miserable with me so just leave me!". Things like that when in reality I just want to vent about my feelings to her so we can prevent fights from happening again... Well yesterday another one of these stupid little fights happened and she ended up saying that things will never change and she feels she is constantly being judged and that she no longer feels wanted. I asked her why she feels that way and she simply told me that it's because I'm not fighting for her to stay. She told me she doesn't feel loved and she is tired of feeling like she's a problem in my life. She left and said "were over because you aren't fighting for me anymore".

I just sat in my car wondering what the hell happened. I feel like this is all my fault but at the same time I feel that i shouldn't have to hide if I'm bothered by something just so she can not feel guilty about things. I didn't know if I should have fought to have her stay. I don't know if it was right for me to let her go. I don't know. I have been considering texting her asking her to please talk to me but I don't know if that's the right thing to do....believe it or not this was the short version of what's going on my my mind. There's so much to say and I rarely get a chance to talk to someone in person about my emotional struggles but again, if you made it this far, thank you stranger.

TL;DR: Been dating for almost two years. Me and her are at different maturity, intellect, and mentality levels as well as different backgrounds making it hard to communicate and connect. This led to the downfall of the relationship where it is extremely difficult to simply talk to one another rather than fight. Now trying to decide if I should look for her and ask her to talk, or let things go and let time do the work.