It is more a comfort zone: if you have already a common (foreign) language, why bother study another?Getting to know each other will open a new world to you and in return you will have to open a new world to your Japanese partner as well.Several studies have found correlations with the amount of time a couple waits to have sex and the quality of their relationship.
Japan and the United States have different views of dating and marriage. Marriage has a long history in Japan, a history that is based on gender roles influenced heavily by Confucian views. If you want to learn more about gender role expectations in Japan, gender roles of women, and how China’s Confucius has even influenced anime, follow these links. The rules of dating, courtship, vary across cultures. There are a few key ideas that are identical to dating in Japan and in the United States.
However, should English not be your mother tongue, beware!
If you are dating a Japanese guy chances are low he is interested in your native language.
Let My People Go Recently, a friend had a five-hour date with a woman he'd met on J-Date. This habit, I imagine, is due to social anxiety, narcissism, or some combination. If you think you might be a Chatty Cathy or Charlie, here's a test: Do you love the interplay of bass and treble in your own voice? Did you raise your hand in third grade even before the teacher asked anything?
If you don't want hot monkey love with a particular human, you need to communicate that. That way both of us can cut our losses and move on. Zip it Up Lately a buddy told me that 70% of the men she meets online yap the entire time they're together, never attaining even basic information about her.