I would delay judgement until the texts come out.
What if the teachers responses were “leave me alone”, or “get help”, or “I am taking this to your parents?”
I can think of no reason for the teacher to go to the house.
If someone is pestering you you block them or, if your phone does not allow that, ignore them.
In any event I’m sure the phone company still has the technology to block certain numbers from reaching your phone.
I can think of no reason for the teacher to go to the house.
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Perhaps he was there to plead with him not to make him lose his job. Or maybe he was there to ask for her hand — or worse.