It can be different depending on whoever is saying it, but I personally believe whenever you say you are “seeing someone,.” It merely means you are hanging out with a person exclusively. This means that even if you are not officially together, you see each other often.

You are each other’s dates in some of the special moments of your life. When you are “going out,” this means that you are still getting to know each other. It is likely that you will go out with your friends too or you may be going out with different people because you are getting to know all of them. As long as you are not exclusively dating, this is not something that you have to be concerned about.