What does it mean when a guy texts "We will talk soon about everything. Take a couple days to think."?

We have been "talking" for a few months now and he won't date me because we live 300 miles apart but we still talk every day and visit each other once a month. Lately we have fighting a lot -- he invited another girl to come visit him who he says is just a friend but he obviously is attracted to which I was not okay with. Except I can't say anything because we aren't official.
What does it mean when a guy texts "We will talk soon about everything. Take a couple days to think."?
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