I mean if he really didn't love her wouldn't he just let her go? It's way safer, after all.
Also she can see through the blindfold? i don't remember anymore.
She cannot see through it, her very first escape attempt was "I'm sure your face is attractive, please remove this blindfold so I can see?"
…Although, now that I think about it, she seems to be getting around okay… given her propensity for lies, she might be able to see through after all. Or maybe she can see via her snakes? Or she might have
pit organs elsewhere on her face not covered by the blindfold?
Later on she claims to have heat vision – my bet's on pit organs (unless she's also lying about that).