Although some of the responses so far might appear overly harsh or direct there is wisdom in those words. However, it does take a bit of balls to sign-up and make your opening post telling us what happened even though you remain anonymous, so well done for doing so. You may well save yourself some heartache and wallet strain in the future.
Across the internet where people do not know the poster those providing responses can often lean towards being rather more cynical and direct. Please do not take any of the comments personally as in almost all cases the guys who are offering their opinions have either been to Thailand before and have been witness to similar scenarios, or been directly involved themselves in the past. The vast majority of readers on fora such as this have read about such events numerous time before.
I have a live-in Thai ladyboy girlfriend who is 34 years my junior, but the difference is I live here, but I didn't always. In the past I've had several long-distance relationships too but they all ended primarily due to the fact I wasn't living in Thailand despite visiting numerous times per year.
Remaining seemingly faithful to one girl when you are unable to return for another year will achieve nothing other than tug at your heart-strings gradually. You say she hasn't mentioned money or financial support as yet and I believe you, but I can 99.9% guarantee that at some point she will. It may not be a direct request for money, but some suggestion of being unable to pay her rent because her handbag was stolen, a family member becoming sick or being involved in an accident, or some other such life event where your assistance is required and she will lean on you for that help because you're a rich, caring Westerner.
These girls love to try and trap you and will fill your head with everything you want to hear in order to reserve you just for them. They don't want you to see (or waste money on) any other girls, they want you and what you can offer exclusively for only themselves. They want ownership.
Many say age is irrelevant within relationships between Thais and Westerners, I agree to a certain extent. Although it may seem that way on the outside the Thais see a mature Western man as far more financially stable and less likely to ravage them multiple times a day to the extent a much younger guy might.
In general these girls are experts and getting under our skin. Relationships can form very quickly when in Thailand and an accelerated romance is quite easy and commonly achieved. Once bitten and recovered you will learn to keep them at arms length and enjoy your time together, but equally learn to say goodbye after a few days and pay to conclude the short-term relationship before it develops any further.
Handing over contact details to her was a mistake, or at least one that is one of your main ones. Leave your heart and your Western contacts at Suvarnabhumi arrivals hall and collect them on your way out.
Here's something I wrote several years ago:
http://ladyboyforum....ss/#entry247344
She Loves You, Yeah, Yeah, Yeah ...
Does your ladyboy girlfriend spend regular time with you but never actually asks you directly for money?
If so, pause for a moment and ask yourself why...
Are they with you because of your good looks, sparkling personality and weird western ways?
No. They are with you to help themselves and their families, so it's only a matter of time before those girls on the long-con who rarely, if ever, ask directly for money start to drop hints for financial assistance or make indirect requests for monetary help for themselves, or most likely for a family member who they say is in trouble or needs help.
A direct payment seals the deal on an occasional encounter, but for a more regular partner just accept that she expects to be helped financially, although it will never be enough in her eyes. Even if she doesn't say anything and doesn't ask for money out right that is certainly what she is thinking.
Of course, pay for services rendered, plus the occasional good will gesture never hurts either, if you can afford it. But when it's clear they're getting overly greedy or taking the piss it's time to pull away and move on. Sometimes easier said than done, we're all human afterall.
Keep your wits about you, your money-radar on heightened alert and your bullshit-o-meter set to record.
___
dixon cox (2012)
Let's suppose she is in the 0.1% of good girls 
When you return to Thailand in 2016 she will still be there, as will 1,000's of other ladyboys. If she's not then she's with someone else. There is no need to remain tied to only one who writes a nice email while she keeps you dangling and aching to return, especially when she is most likely going through similar scenarios with other guys while sweet-talking you via email. After all, she works in a bar serving Western clients in the biggest whore city in the world. They can smell a newbie at 100 paces.
Let the communications fizzle out by not responding. If you ever see her again in a year's time then just say her emails stopped as she never replied to you.
Sorry but you are either very naive or a troll. I haven't discounted the latter because you just joined the board today.
