yes me too... I doubt that the baby is yours. She's 19 and behaving that way. I mean, age is just a number. At least she could behave and treat you with respect. Going out with friends for long weekend, hot and cold with you. For sure she is not true to herself. There are some filipinas who thinks that marrying a foreigner will get them off the poverty, never mind if love is there or not. In the end, some develops true love and respect, there are some that breaks the marriage because the very foundation of a relationship which is love, trust, integrity, respect, loyalty, honesty and devotion are missing. These ingredients are vital.
Before investing emotions, try to see if she is someone who will commit. If she truly loves you then she should not play with your emotions like this. I don't think you ever want to hurt the one you love. Regardless of the distance, situation, age and likes.
