I really have no advice on the voices, because my advice would be to see a psychiatirst about that ASAP, but you said meds do not help.

As for scarlet fever, I've had that. You need to rest and all this drama is not helping.

As for your boyfriend.... trust can't be repaired with words. It takes actions. There may be nothing you can do at the moment except stop the behaviors you have previously done to hurt him. If you can't then you may have to go with that old saying "if you love someone let them go, if they don't come back it wasn't meant to be."