Dating is haram
Typically, the word dating is used when a guy and a girl develop both an intimate physical and social relationship together.
The physical part is as simple as holding hands and gradually evolves into hugging, kissing and eventually S-E-X.
Although you may use good arguments to comfort your mind that your actions are harmless, your soul feels the energy being zapped away and becomes weaker and more vulnerable.
The time and attention you give to your emotional attachment is the precious strength your soul needs to grow.
The classic argument to support physical relations is claiming that the person is "rightfully yours." You convince yourself that the person you are dating, which happens to be a fellow Muslim or a potential convert, will be your future spouse which is exactly what I had done when I first had a serious relationship going with my wife of 3 years.
By that time, the "rightfully yours" dream date may be out of your life and you realize your useful excuse provided temporary pleasure at a great expense to your soul.
The main problem with the rightfully yours argument is that this Quranic statement has nothing to do with supporting dating intentions.
In this case, the relationship should be called a friendship, not dating, and all parties involved should have a clear understanding of this from the very beginning without any room for guesswork or temptation.
Even then, what one day seems like just a friendship may develop into something more.
You may try to ease your mind quickly by defining sexual relations as intercourse only, leaving all other contact as fair game.