I'm going call the police and report my ex for selling mushrooms
Do you think the mushrooms are illegal to sell?
I see suspicious bitcoin transactions in his bank account.
If you suspect something by looking at the bank account then it is probably something wrong going on. You can't be too careful. Just be sure you have enough evidence to try to get this activity taken care of.
I will report him anyways since I don't care what you think.
You might have to take some time to think first about what you are doing but so far I think you might be in the right here. I just care about you and you need to make sure things don't backfire too.