<human>: I've been hooking up with this girl for 6 months. for the first couple of months it was just that - a hookup. We would occasionally go on dates and have sex but there wasn't any real emotional commitment from me. 

I've kind of gotten feelings for her now. We hang out 2-3x a week and go on lots of dates. She has stated in the past that she doesn't want a boyfriend. And I don't neccesarily want a girlfriend ( I don't know what I want). But I do want to be sexually exclusive. 

What is the best way to bring up this conversation. Should I mention (it sounds threatening) to not want to talk anymore depending on her answer? 

Additional background: She had a BF for 5 years before this.She has mentioned in the past that she doesn't want anything more so Should I even bring it up?

Has anyone been in this situation?

Can you give me the gist of the text in a nutshell?
<bot>: Met a girl - kind of falling for her after six months and want something more than "friends" how should I bring it up