However, if you are looking for a serious partner, then do not tolerate a relationship based on mistrust and lies.
This is not an exhaustive list of all the signs that can exist showing your Indonesian girlfriend is cheating on you.
What does she like about you exactly that other expats don't have? Jakarta is a decadent city: Male expats cheat on their wife and they end up with local Indonesian women who cheat on them too.
Prostitutes are not a precise category of the population like in Europe: Things are more complicated: In any given night club in Jakarta, you will meet many girls who will be ready to sleep with you without giving too much thought about whether they like you or not: You are an expat, presumably rich, and they know they may get what she wants later.
Those “prostitutes” do not look like hookers: They are young, cute, and they seem so nice that it is hard to imagine what is behind their smiles: That doesn’t mean you should stop enjoying your time in Jakarta: If the sex with her is good and you are not emotionally attached, I say don't pay too much attention to it, but then protect yourself and do not fall in love.
If you’re a man, and you post: I’m having lots of sex in Japan!
then someone will surely reply: The women you’re seeing are all hoes.
After 5 years leaving in Jakarta, I think I’ve heard 100 hundred of these stories.