Welcome to HCM.
The chance of HIV
transmission though touching the vaginal fluid from the condom while removing and the finger contacted the abraded prepuce is negligible as per CDC ,Atlanta.
In many many occasions dotors, Gynecologists, Dental surgeons, ENT surgeons, HI/STD
specialists, nurses, Laboratory people, cleaning staffs, other Care providers in home are coming in contact with touching the infected secretions with bare hands with or without injuries are not getting HIV.
So you need not worry about this.