In Finland sexuality is a love affair: people choose freely whom they love and with whom they want to get married and start a family. They also choose freely is they do not want to associate with someone or be sexual with someone. That is good life and makes things work out well. The rule "Live and let others live!" (which means that it is ok to be selfish but not to mess with the lives of others, except fairly interfering with others is ok) makes things work out well and gives freedom.
But in some other countruies people either aren't so free, so skilled, they have a different view on love in their enviroment, or they do not have enough contacts. So they end up with less good arrangements which though are said to have the good sides of love affairs.