I don't know if anyone else has (or could) edit it, but I was sure I wrote ….as to whether HE THINKS you might be running a business.... I was not trying to accuse the OP of operating outside the law.
Agree the best way forward would be to sit down and talk about it.
But the thought also occurs as to whether you might be running a business from home without change of use planning permission.
Not sure about the technicalities of that sort of thing. Only an issue probably if you're self...