Find another male friend, or several of them, to help you with getting Jesse used to men again. Keep her close to you, and reassure her that everything is okay when they slowly approach. Take this slowly, work on it whenever you can, remind the guy(s) to move slowly near you until she gets more used to them. You can give them treats to give her, or have them throw a ball for her if she likes fetch, let her lean on you if she wants. Just keep speaking quietly to her, letting her know everything is fine.

It is too bad your Dad doesn't like Jesse any more, but there are plenty of male people in the world who can help you with this.