She's addicted to fame.
It's worth remembering with Bear she didn't need to be public but chose to be public.
As somebody above has already written she's a massive clout chaser. On Day 1 of this series, she declared she wanted a man to 'walk the red carpet with'.
I don't think she's attractive or a particularly nice girl, she seems very busy and in everyone's business. It's noticeable how all the lads who have a history with her kept their distance once in the villa...I think that's a bad sign for her.
She's 29 now and this show hasn't done her any favours. I think she'll still be scrambling around in a few years, still kidding herself that she's a celebrity.