Dennis didn't realise that his trip was sex-tourism!
I feel after reading some of the reviews, that some parts of this brilliant film is misunderstood.
The trip to Thailand: Dennis is not a stupid man, but he is a simple man, and I think that when he attends his uncles wedding he simply does not realise that his uncle actually bought his wife free or that what his uncle actually has been on is sex-tourism.
Because:
1)At the wedding Dennis could not be directed more star-gazed, than he is. He is utterly in love with the concept of happiness at his uncles speech, and notices nothing else.
2) In thailand the receptionist asks him if he wants to pay for a girl sleeping over now or later, this confuses him greatly.
3) When he brings the first girl home, she completely stuns him by telling him her price
Finally Dennis is not looking for sex. He is looking for happiness and togetherness. His wierd relationship with his mother has left him socially awkward and I feel this has left a hunger for human connection in his heart.
- I am actually leaning towards him either being a virgin or at the very least on a 10-year dryspell
He would not knowingly go on a hooker-chase in Thailand, because he is not a sexual being, he is in search of love