Any beautiful woman is going to have admirers and exes, but the fact she's receiving texts from guys saying "love you too" when she's with you doesnt look good. She must have been telling him she loves him as well. Your first time together in dubai and your arguing, thats not a very good sign. What happened to your first choice girl anyway?
She could have just been playing the game before she fell for you, but from what you say it sounds like shes still, at least, flirting with other guys.
There's plenty of filipinas who once you've won them over will be faithful and would never do the things you've mentioned above.