Some people are to judgemental.
I am married to Thai Lady and we have many friends that include Bar Girls - their dream is to marry someone to take care of them and in return they will be the good wife but there is another side to this story - I have known plenty of girls that had their dreams shattered by Western men that promise the World just to keep them sweet , and for no reason never here from them again.
I also know plenty of hardened bar girls where butter would not melt in their mouths and have 4 or 5 Farang on the go raking in over 30,000 baht a month just talking to them for 1/2 hr a day and still going with customers and Thai men.
We have friends that we see that have giving up their lives in Thailand and moved to UK, Denmark, Norway and Holland. Their relationship works because their husbands let them come to Thailand to be with their families every year as well as sending the girls family some money each month to help them get by.
I live here , I work so does my wife and we do contribute to my wife's family - it's Thai Culture ( it's also Arab and African Culture to care of their families )
I am not going to get to deep.
I believe that you should keep in contact with her - 8 month's will fly by and when you return to Thailand have some quality time with her - if you are serious you won't butterfly - if you want to be with other Ladies then you are not serious.
As long as you are honest with her and tell her you want to be butterfly she will understand and still see you when you want to see her.
Good Luck