Halal dating is a way for Muslims to learn about one another to decide if they want to be married, while at the same time observing the beliefs of Islam. When Muslim men and women date one another, it is with the intention of marrying one another or deciding against marrying.
What is halal relationship?
For a relationship to be halal, or Islamically permissible, it has to be done with the knowledge and consent of both of your families, and usually with a third-wheeling tagging along until the official kateb ktab or marriage contract is signed.
Is it permissible to have a girlfriend in Islam?
Yes, indeed having a girlfriend/boyfriend is haram. The reason being the Quran and hadiths making it clear that it is forbidden and leads to bad effects. You lose kushoo in your Salah and focus all your time on futility and immorality with this girl who is haram for you.