OK I have to be honest, you are already handling it better than I would!! I would be hunting her down and beating the truth out of her!! (not a good idea BTW!) but I can understand being jealous and angry and suspicious and hurt.
I concur with the ladies who have already posted. Call her and ask her what is going on, but personally, I think the fact that you found Hottie with her number after it as a big sign.
