i have a wood floor that was glued down. the problem is the wood, in some areas, is separating long ways. now its not just a little its about a half inch at most and continues to pull back out when ever i move it back. the glue is sticking to it, it is very hard to move back and will stay for little while but eventually makes its way back out. my question is what is cause this and what can i do to fix it permanently?

The glue once it sets may remain tacky, but it looses its ability to hold. What your seeing is the tackyness of the glue holding the wood for a short while then releasing. You need to scrape the glue away and replace with fresh adhesive.
If the wood is moving it may be the result of moisture being trapped below. You should check the moisture both of the wood and the underlying surface to be sure that is not the issue causing the adhesive to fail.
Moisture readings should be in the range of @ 12% or less. If your much higher then 18% you should be concerned both because of additional floor failure and mold development.

so basically i need to rip up the floor and redo it and fix the moister issue? well is there any other suggestions that could cause this and to fix the problem? thanks for your response though it really helps

There is only a few things that can cause this issue.
Uneven sub-floor
Moisture
Adhesive that may have dried out before the floor is set into place. (very common as the glue skins over when the installer puts to much adhesive down and does not get the floor down fast enough.
Warped flooring that was forced to fit.

What is the floor layed on. Wood, Cement? Is it over a basement crawl, or slab? Having this info may trigger some other ideas and fixes.

But in many cases depending on the floor material the bad section can be cut out and repaired. Just takes some time and a little effort.