Honestly, I’ve thought your case has sounded “off” since you started posting here.
I’d say he’s showing you who he really is. Sounds like he may even be undertaking a common scam for his country, where he comes over, divorces, and then petitions for his “real” wife back home.
You can report suspected fraud on the USCIS/DOS websites. You can notify the consulate in writing if you want to withdraw as petitioner/sponsor.
best luck, and hugs.