From a serious POV I have to agree with the teacher here. I mean, Arase’s rundown of their relationship doesn’t sound promising. Even as a teenager, making her cry all the time is....not a good sign. From a long term perspective there’s a lot of work to do to become independent. You know, like a guy who can remember to pay his electric bill and feed himself. In a lot of ways, it’s kind of like she’s happy to be needed by someone, which is not the healthiest way to start a relationship, esp one that’s taboo anyway. What would she do if she couldn’t be a teacher? Then she couldn’t afford to support him either.
I mean, this is a shoujo - they’re cute and will probably end up together 🤷🏻♀️ but if this was IRL and my friend, I’d tell her this is a bad path. If your feelings are so strong, you can wait a few years. If not, you’ll be able to move on in that time.