She is looking for someone who lives closer to her.
Long distance relationships can be very hard to maintain.
Being that you aren’t in the same physical vicinity as your long distance girlfriend, it can get really hard for her not to have someone close by that she can turn to when she is emotionally in need.
In essence, when he is able to hide or even deactivate his dating profile so that he can focus all of his attention on you, he is showing that he is more interested in you than other girls.
If he is still talking to other girls on the dating site and meeting them, there is a good chance that he is just as interested in you as he is in them.