I see Jennifer helping the mother in the future to get D away from F so that she can have the father all to herself using the video she recorded with the cam.
That is enough evidence to have him locked up for years, unless they agree to her returning with her mother and promising never to see him again.
I was on a Jennifer route until she went to install the spy cams and at that point I realized that she was an insane stalker bitch that in real life would be watching every move a guy made until one of them murdered the other.
Leaving would not be an option, because she would find you.
With the murderer most likely being her, and killing him in his sleep, or maybe she just snips off a souvenir as a reminder of their time together. Something he will really miss in the future that guarantees that no one else will be with him .
If she can't have you, nobody will...