<human>: Can you provide a brief rundown of the text in within 3 sentences?

Well, couple of nights ago, got with this girl (that means kissing in the UK) after a great chat of about 2 hours - in which she explained how she broke up with her boyfriend before uni started and left him in Spain as she was coming to the UK to study. Now to be clear, I made it wonderfully clear - through stories of past girlfriends etc that I **detest** cheating. 

So we kiss. The next day we text a bit, but don't get to see each other much (we're at uni together) except for in the evening where she is telling a group of mostly guys that she has a boyfriend, I've been unable to get her alone to ask and her phone is lost now so can't text her asking. How do I approach asking her if she duped me or them - and what does it mean?
<bot>: How do I approach asking a girl if she has a boyfriend when she's lied about it to either me or everyone else?