Reread what astro wrote. I’m sorry, but he’s absolutely right.
astro:
There is little you can really do other than move on. Paranoia like this is generally indicative of serious, long term, chronic mental issues that will never be fully cured but can sometimes be managed to a degree with medication. And they tend get worse with time. You can try to point her in the right direction medically but it’s unlikely she will follow your advice.
1: Don’t make babies with her
2: Get the fuck out of there, you are only at the beginning cusp of this process. These kind of mental diseases often hit in the mid to late 20’s and it gets lots, lots worse in most cases as time progresses.
None of these people are trained therapists but if you want someone to talk to this website may help: https://www.7cupsoftea.com/BrowseListeners/
NAMI, National Alliance for the Mentally Ill has a lot of info and local chapters in larger cities. Also a lot of mood disorder support groups have a friends and family chapter
https://www.nami.org/
This forum might help:
http://www.crazymeds.us/CrazyTalk/