There's a girl obsessed with my other-half who has said until he marries me she is perfectly entitled to chase him, kinda like the person the OP mentioned.. she's had cosmetic surgery to try and make herself more attractive to him, says she has changed religion (tho I'm not sure if that is actually true) and resorted to hacking his phone via bluetooth.. I feel like throttling her..
Re: I dont see a ring...
Haven't you heard of the saying:
"dude! he has a girl friend!! So? Soccer has a goalie, that doesn't keep me from scoring!"