<human>: Can you give me the gist of the text in a nutshell?

I am male (M19).

So my girlfriend had an online relationship with another girl about a year ago but it fizzled out and died.  They never met in person but sexted and webcammed a few times.  Today we drove my girlfriend to the airport to visit her ex girlfriend and take her out to eat as a friend to friend thing.  Her ex girlfriend requested I not be there so instead of eating with them I went to another booth with a friend.

There's now pictures of them on facebook with my girlfriend kissing her ex on the cheek and her ex posted pictures with titles like "Met my future wife today" and is being *very* clingy in text messages.  Saying she doesn't like me because I have my girlfriend instead of her having my girlfriend.  She's begging my girlfriend to come out to her city and visit and is offering to pay the ticket.

My girlfriend is saying she'd never leave me for her and I believe her, but should I be worried at all about this?
<bot>: girlfriend met with her ex.  ex is being *very* clingy but my girlfriend assures me its ok.  should I be worried?