Assuming that you're talking about a Thai bar girl, you can be sure that as long as you're willing, and/or able to keep the cash and gifts flowing, 99.9% of Thai bar girls are going to 'like' you. But if you've found yourself asking the question, as to whether or not your Thai bar girlfriend 'really' likes you. There really is only one way to be sure. And that is to cut off the cash. Something that most guys engaged in a relationship with a Thai bar girl will realize later, rather than sooner.
And with the above statement we don;t mean to tar all Thai girls with the same brush. Especially not those not actively working the bar scene. But while there are exceptions and many men who have holidayed in Thailand have met the woman of their dreams, and have gone on to enjoy long and happy relationships. They are without argument in the minority. Essentially, if you met her in a beer bar, GoGo bar, etc. Chance is, primarily, if not solely, she's most interested in you, for your money.
Thai women are not only incredibly beautiful, they are also incredibly talented at making visiting men fall in love with them (they even swap note books, and tips at their bars, designed to increase their chances of hooking a 'benefactor'). And every Thai bar girl knows, that while twenty dollars for lying on your back for the night might be worthwhile, a few hundred dollars plus every month, sent directly into your bank account from abroad, most likely from numerous men, with at most, having to hook up with them for a week or two once a year to earn it, and the occasional text or phone call, is much much nicer.
Don't Be Prey!
The majority of Thai bar girls (while working - which includes extended periods of time that she's spending with you which YOU might not class as her working) are predators. Does that make them 'evil'? Not in my book. This is their job. And they do it well. But, equally, it is your job not to become her prey.
Your Thai bar girl girlfriend will have summed you up to some degree almost instantly, and if you've spent more than twenty-four hours in her company, she will know with almost zero degree of error, whether you are the type who is going to spend the next few years sending her your monies via wire. And basically, if you've done anything more than buy the ticket and take the ride, if you've taken her out for a nice meal, or an evening at the cinema, then chance is, she'll be enjoying your hard-earned cash sometime soon (unless of course you heed the advice of those who have made the same 'mistakes' before you).
So, cut off the cash. If you really want to be sure. And sooner, rather than later, if you were hoping for the kind of relationship based on 'something more' that most Westerners relentlessly search for (though as a point of note - relationships based around financial provision are considered to be perfectly normal throughout much of Asia). Because the average Thai bar girl will soon vanish as if she never existed, the minute that funds become lacking... And should she be happy to maintain regular contact without the cash injection, and should she be counting down the days until your next visit to Thailand, when you haven't been sending her cash all year long, well, then maybe you can help her out with the financial support you'd presumably offer if able to any woman from anywhere else when in a loving and committed relationship, just as soon as she has proven herself to not be an international 'gold-digger'.
