The mechanism for resistance is differ from antiviral to antiviral. For example,
Lamivudine resistance is more on
and off. Adefovir is more gradual. Unless you research this area, it's hard to know what exactly is happening. But we do know all antivirals are at risk for resistance over time. And since you are 40 with early cirrohsis, you need the antiviral to stay working for another 30 years or so without resistance, that is a tough goal.