Dear @Rhirhi,
Welcome to the forum and thank you for sharing your story.
It would be great if you could clarify what you are testing with the titre. If this is the value for anti-HBs antibody in IU/L, then you are considered protected from exposure. Indeed people have had children with HBV-positive partners and stayed HBV-negative after being vaccinated (see Having children and Hepatitis B).
Any exposure during adulthood has a low risk of becoming chronic (~10% in unvaccinated people).
Hope this helps,
Thomas