Relationship stress

I’m emotionally exhausted. My girlfriend hasn’t always been this way however now it’s to the point where there’s no respect. She doesn’t cater to how I feel when I get the chance to talk to her and she always hiding her phone . Tryna leave from every misinterpreted conversation or saying the most rude thing for no reason. And she will never apologize. I feel I can’t handle anymore disrespect I’m at a breaking point and there’s much much more I failed to mention.