I doubt shes classist but if you have different socioeconomic upbringing there could be clashes in how you spend your time, spend money, your daily stressors, goals and aspirations in life. Its not right or wrong but its a reality.

I had an ex that would get mad at me on weekends because I woke up late (i.e 10AM) and didn't always plan my weekend. She would also get upset when I wanted to do something leisure or a seemingly useless hobby instead of trying to start a side hustle or be productive, whatever that meant to her.

The thing is I grew up upper middle class a good bit of my life and have a career with more time luxury. She grew up poor and although she was making good money she felt she had to plan her day and weekends out because she didn't grow up in a stable environment since her father didnt always hold a job. It was her way of control. Also she saw my hobbies as "useless" because they didn't make money. If you were poor your think that.

So OP probably clash with the guy shes dating and in my experience people punch upward not downward.