This has happened a few times and recently again my gf has blown off plans a few days before because she is busy with studying for school/work. I talked to her about it (possibly a mistake) because she got defensive as I told her “if you don’t have time for a relationship just say it”. We had a small fight and now it’s fine again, however I am disappointed at the lack of interaction recently because she can’t make plans or keep them at times.

How should I have better handled the situation? I’ve read it says to ghost her if she cancels plans to teach her not to do it again.