Am I being manipulated or am I being insensitive?

For context, she (F23) is in school full time and I (M24) work. Our free time is almost exactly opposite of one another, except for Fridays, Saturdays, and a small pocket of time on Wednesday nights. She and I both know and understand this. Still, she feels that I don’t see her often enough and that shows her that “I don’t care”. She starts an argument with me at least once a week over this in some fashion.

More context - I got a filling at the dentist earlier, hence my “hurting face” which kicked off the argument.