There have been more than a few people questioning the possibility of her being involved with various other deaths and missing persons on here. I wasn't speaking about any specific one. And I certainly have no idea if she would have an alibi. She closed her Facebook at some point between Jaren going missing and the club footage being released. She even went as far as to create a new page with a different name. She attempted to add some of our former co-workers, but ended up deleting it pretty much right after she set it up. So I'm suggesting that it would be strange if she'd been involved in other cases and was out partying with no fear of consequences, but then this specific time she got spooked and disappeared. Add to that emotional instability, and it becomes even harder to believe that she would be capable of simply going about her day to day life without being crippled by the fear of being caught.
As for how long she's been with him, I WANT to say she started mentioning him shortly after Mardi Gras. I can't really claim that I paid much attention to the revolving door relationships of my co-workers though. So you really can't take my word on that as much more than a guess.