Two of my oscars started to pair up on one side of the tank together. If any other fish comes over there they attack them. They started to dig up the grave and move it to the side. So now there is a big flat spot of glass showing on the bottom. I have another oscar that trys to go over there but the two wont let it. Its skin came off from getting stuck in a clay pot so it is still healing. but now it just sits at the bottom of the tank on the other side acting all depressed. The two that paired up will come to the top and eat then go straight back to their side. But the other oscar wont even come to the top or atleast it hasnt for a couple of days.

So i was wondering if the pair will end up laying eggs and why is the other one acting so strange.

this is common if a pair team up. they wont take too kindly to the other one in there space. and it dose sound like your two may have paired off together. after any egg laying they should get on ok again an till next time.