i would have to agree with jim and queenbee on some of the points they have made.if you are having doubts after the time you have known each other then maybe something is wrong. also dont assume they are scammers because they are filipino and asking for help. scammers are usually quick to ask for money early in a relationship not this late in the day, maybe he is geniune. as jim says just talk things out and go with your instinct. are you sure he isnt married already?
