My (23m) 6 year relationship with my girlfriend (22f) might be sour and I don’t know how to end it if I have to?

Okay so for some back story I met my now girlfriend right after highschool back in Virginia (where we both grew up) in like 2020 and I wasn’t looking for a relationship at the time but well it happened and we definitely fell for eachother, we where both still practically kids then and where still figuring out how to be adults but he mother was always very coddling yet aggressive. She never had a job, never had a car or a drivers license, nothing. Anyways we lived together there for a few years and then I decided I was going to move to Kansas City because I got a great job offer and housing was to expensive there and so we both moved half way across the country. She got her first job and had had a few since but I have always been the one paying all the bills (I like it that way and I make good money so I’m not concerned about that) but she’s always struggled with depression and over thinking things and that part has been really hard on me. I am a very happy person and I try very hard to help make her happy but even she will say that I can’t help her be happy. Anyways last night she said something that concerned me. She said “ I don’t have to be here or deal with any of this but it’s not like I can go back with my parents or stay anywhere else”…Now yes her mom is very toxic and kinda psycho but like what. I will not have someone staying with me just because “I can’t go home” and she still doesn’t have her drivers license but how should I end this? as we are currently in Mississippi (I’m here for work) and her parents live in va.

TLDR: my girlfriend might just be with me because she doesn’t want ti live with her parents and I don’t know how to end it as we live half way across the country from where she grew up.