Sarah nailed it. They need to be in completely separated rooms now so they cannot see or smell one another. Wash your hands inbetween handling buns to help mask scent. You need your girl to completely forget he exists, and visa versa. This could take up to three months. I would wait the full three given that skin has been broken. Once the three months is done, you can keep their cages next to one another for a month, to help them settle, and then after that month (now 4 months from now) you start prebonding. For prebonding, youll swap their toys, litter boxes, bowls, ect and let them mark everything. Once a day youll do the swap. Youll do this prebonding for atleast a month. After that month (5 months from now), you can start actual bonding in a neutral territory, while continuing with prebonding.
If she is forever scared of him or other bunnies, she will never be able to bond with another rabbit. Are you prepared to have two single buns who cannot be anywhere near one another, ever, so long as they are alive? If not, time to start making back up plans, just in case.
Not all rabbits like to have others around. If you and your husband give her enough attention and grooming, she will be a happy single bun.