Furious , Frank tries to force Vince to compensate him for his lost profit .
Vince refuses and amidst Frank 's threats , Vince leaves in March 1990 , saying Vince is sick of Walford .
Furious , Frank tries to force Vince to compensate him for his lost profit , but Vince refuses and amidst Frank 's threats , Vince leaves in March 1990 , saying he is sick of Walford .