Arguments out of the blue. This does not indicate passion, but rather that you have little in common and different worldviews.
Different languages of love. In the future, you will either have to work on yourself, or there will be misunderstanding.
Secrecy. Who would want to live with a person who is constantly hiding something.
Lack of intimate relationships. No matter what anyone says about it not being the most important thing, such contact is very important for relationships.
Earlier we wrote about why it is difficult to forget your first love.