I don't know what your problem is I am married ton a Thai lady for about 21 years and no kids either (we live in OZ) she goes in holidays to Thailand by herself and sometimes we go together but she always comes back after visiting family in Thailand. She used to have Thai friends in OZ but split with them she only got one now. We have a Buddhist temple here but she only been ones in many years. Maybe she does not like the UK climate? Let her go if she does not come back it just means she does not love you.